Mr. Z.


"Fifth root of -1", by Mr. Z.
Mr. Z. is a recent graduate of MIT, where he majored in physics, but also spent a lot of time studying math and computer science. He went through MIT's excellent teacher certification program, which is run in collaboration with Wellesley College. Mr. Z. has a wide variety of hobbies and interests, ranging from forestry and biology to electrical engineering to martial arts to fractals, a type of mathematical artwork (image to left). His favorite television show of all time was Square One, which was a math show on PBS years ago. His new favorite book of all time, which he read for the first time this year when a student left a copy in his classroom, is A Tale of Two Cities, by Dickens. Some of his other favorite books are Fahrenheit 451 (by Ray Bradbury), Speaker for the Dead (by Orson Scott Card), and Invisible Man (by Ralph Ellison).

This is Mr. Z.'s first full-time teaching experience, but he has taught for two summers at Citybridge, a residential summer school for Boston and Cambridge students. Since he's so new at this, the more feedback you can give him on how class is going, via the website, the faster he can get better at teaching.

This is Mr. Z's message page. You can drop messages for him here by clicking on the "post comment" link at the top or bottom of the page. You have to log in before you can post a comment. You can also get in contact with Mr. Z. through email at rzahniser@boston.k12.ma.us.

- - Tue, 2 Aug 2005 18:03:00 -0400
hey mr. z

hope you're having a good summer. I just started on the Physics AP packet that Mr. Eaton assigned and I thought I'd leave you a comment. I'm really glad that you're teaching next year also because as a testament to your good teaching, I still remember all that stuff you taught us...except that average velocity and acceleration stuff, I never understood it >=\. yeah thats it basically.

Phuong Ngo
- - Mon, 27 Jun 2005 08:55:44 -0400
Mr.Z this has beena wonderful year. U hav made us understand physics in wa that others theacers can even coe up withmU have brilliant ideas and perfect teaching idea. Thanks for making us learn hands on intead of all textbooks. Yur homeowrk shees are way bette tan tetbooks. They are fun nd they challenge us. It means a lot for the techers to conectwith the students an u have done that. The finalwas challenging but I felt prepared. et yar keep up the good work. This was a relle good class. Ihad a good time . Thank you and have a wonderful summer
- - Mon, 27 Jun 2005 08:50:41 -0400
Mr.Z u givin us chance to make up our homeowrk hs saved so many of us from getting a bad grade on our report card. The fact that u hve given us second chaces means a lot.
- - Mon, 27 Jun 2005 08:49:44 -0400
Thanks for giing us water to keep u hydrated.It helped a lot
- - Mon, 27 Jun 2005 08:49:16 -0400
Mr.Z thank you for your revwing for the fnals. It helped because it made us remember and refreh our minds
- - Mon, 27 Jun 2005 08:47:29 -0400
Mr.Z thanks for your atience during the finals.
- - Mon, 27 Jun 2005 08:47:08 -0400
Mr.Z u had have suchwdnerful idea. The whole going up and playing a game of cards (sherades) was amazing. By far one of my favorite classes.
- - Thu, 23 Jun 2005 23:05:54 -0400
have a great summer Mr. Z. You're by far the best teacher I've had cause I still really do remember all that stuff you taught us. And I'm looking forward to your computer class next year. Sorry my class didn't perform as you expected.

Phuong Ngo
- - Wed, 22 Jun 2005 18:35:39 -0400
Wait...
Thanks also for helping me understand the concepts of instantaneous acceleration and velocity. Also, thanks for helping with the reading the graph as well.
Also, it was upseting to know you weren't going to teach pre-cal because I would have done so well if you taught it.
Anyways, so like I just said before, keep up the good work and thanks for everything. I had a great year in physics!!!
- - Wed, 22 Jun 2005 18:32:44 -0400
Geez, I forgot. Thanks Mr.Z for the whole year. You were a really good physics teacher in my opinion and I learned alot from you. I'm glad I had you for a teacher because you made the class interesting and fun. It wasn'talways about the numbers and equations but you made stories and gave us ideas of why and how it worked not there it is do it because I said so. I hope you keep teaching in a fun and creative manner like you did this year because I think you did a really good job. I went from being a person who knew absolutely nothing about physics to having a good foundation to build off of in AP physics next year thanks to your teaching. So, you did a really good job for your first year being a teacher Mr.Z and I hope you keep it up next year too.
- - Wed, 22 Jun 2005 18:28:26 -0400
For the final it was pretty decent because you had already reviewed everything with us and it was pretty easy to just plug in the numbers to the corresponding equations. So the final was pretty good Mr.Z. It wasn't easy and not overly difficult, it was a good in between. So, good job.
- - Wed, 22 Jun 2005 18:26:38 -0400
On each day that you gave us a review sheet on an isolated topic it was a good way to make us remember it and give us a solid foundation of it. You did a good job with each sheet. You gave it to us one step at a time and that was a good idea because if you gave it all at once it would have overwhelmed us. So good job on that part as well. So keep that up.
- - Wed, 22 Jun 2005 18:24:42 -0400
On the day you did charades it was very clever because it made us review in a fun way. We all participated because the ideaof it being a game makes people want to play so next year do that for the kids.
- - Wed, 22 Jun 2005 18:23:35 -0400
I haven't gotten a chance to write messages on the net but i have them written on paper so...
- - Wed, 8 Jun 2005 17:57:32 -0400
Go Iris prez
Go Pong
Go Courtney
Go Jason W.
Good luck all other Candidates

- - Wed, 8 Jun 2005 17:55:49 -0400
Class of 2007 rules
- - Wed, 8 Jun 2005 17:53:53 -0400
Well, everyone should already know that period 1 is his favorite class.
- - Wed, 8 Jun 2005 17:52:39 -0400
I know that you teach juniors and Sophomores. Which period is your favorite class?
- - Wed, 8 Jun 2005 17:50:33 -0400
I want to know what you enjoyed most about being at Latin Academy.

- - Wed, 8 Jun 2005 17:49:30 -0400
The year is coming to an end. you have done a great Job. I hate Physics but you made Physics fun.
- - Wed, 8 Jun 2005 17:47:55 -0400
I hope that the finals isn't too hard. I hope you consider that we have six other classes to worry about, so it make it easy for us.
- - Wed, 8 Jun 2005 17:45:55 -0400
I like playing charades was fun. Do you know any other games?
- - Wed, 8 Jun 2005 17:45:02 -0400
The review was helpful. It clarified a few things; I had difficulty understanding.
- - Wed, 8 Jun 2005 17:43:27 -0400
I think that I'll do fine on the test tomorrow but some parts I still find to be very confusing.
- - Thu, 2 Jun 2005 20:40:12 -0400
Mr.Z, the vizualization today of the scenarios was a good job in letting us see some collisions that you give us examples for. Good job on that part. I would appreciate it if you went over the 2D collisions some more because I think I have the basic understanding of it but I don't have a solid understanding of it. Thank you and keep up the good work.
- - Tue, 31 May 2005 17:15:31 -0400
For today, You did a good job reviewing today. It was good how you went over equations and went over it in a way for us to understand. So, good job today.
- - Tue, 31 May 2005 17:14:24 -0400
It was a good idea giving us a lab experimenting with the momentum of two objects. The lab was interesting and it was true that it was crucial making sure everyone was working together. Good Job for Friday.

- - Tue, 24 May 2005 17:43:14 -0400
Today, class was very informative. You did a good job linking all the equations and relationships together. You did a good job explaining and it was good how it was interacive. Keep up the good work.
- - Tue, 24 May 2005 17:41:56 -0400
Is there anything you recommend us doing today to prepare us for tommorrow's MCAS?
- - Mon, 9 May 2005 21:23:11 -0400
DAM IT MR.Z, COULD YOU HAVE MADE MECH REV ANY HARDER??
- - Sat, 7 May 2005 14:30:59 -0400
I thought it was funny how u had a card for every asnwer
- - Sat, 7 May 2005 14:30:56 -0400
I thought it was funny how u had a card for every asnwer
- - Sat, 7 May 2005 14:30:40 -0400
Hey i ;like the fact that we used the cards again, wat a fun class
- - Sat, 7 May 2005 14:30:21 -0400
I like the flashcards, it makes us pay attention more, and help you out
- - Sat, 7 May 2005 14:30:01 -0400
Hey i hope you get better
- - Sat, 7 May 2005 14:29:46 -0400
Keep up the good job Mr.Z
- - Sat, 7 May 2005 14:29:35 -0400
I like the fact that you are going to review everything before momentum comes, becuz no other teacher wud do that
- - Sat, 7 May 2005 14:29:09 -0400
Hey I like the labs, they becoxme easier, for us to understand
- - Sat, 7 May 2005 14:28:52 -0400
Hey i thought the test was pretty easy
- - Thu, 5 May 2005 00:22:49 -0400
I'd also like to agree with iris on that. almost nerve-wracking... haha just kidding mr z.
- - Wed, 4 May 2005 22:21:20 -0400
I also like the fact that you are reviewing. Hopefully, the review ( the MCAS) will help reinforce some of the things that we have forgotten.
- - Wed, 4 May 2005 22:17:37 -0400
I agree with on that
- - Tue, 3 May 2005 13:47:24 -0400
Hey, Mr.Z this lab that you gave us today seemed pretty easy once you get all the numbers that you needed. It was a good way to reinforce the equations that we were supposed to use for the problems. So, keep up the good work.
- - Fri, 29 Apr 2005 18:26:27 -0400
All these review sheets you have given us are really helpful. The sheets remind you of the things you should know for the final. I think this was a good idea to do these reviews. Good job Mr.Z. Oh yea, u teach pre-calculus? I want to be in your class next year if you do because that would be great if you did. That would probably be a great class to be in if that's the case.
- - Fri, 15 Apr 2005 18:43:12 -0400
mr.z can the extra credit instruments be anything that resonates? like string instruments or percussions like xylophone or piano?
- - Thu, 14 Apr 2005 15:51:23 -0400
Mr.Z, I think the test was pretty easy. The review you gave us the day before was extremely helpful. I think that that routine is something you should stick with for your classes in the future. It's a big help for getting ready for the test. I think it's because when we get the problems on the test it's fresh in our minds on how to go about solving the problems. So to sum it all up, the test was good, you did well explaining,and keep up the good work:)
- - Wed, 13 Apr 2005 19:29:45 -0400
Mr.Z, the review sheet helped out alot. But, I'm not too confident about the "hard" problem that you were trying to explain to us today. Hopefully, if I look it over again tonight it will make more sense. Other than that you did a good job explaining everything thing else today.
- - Tue, 12 Apr 2005 19:36:34 -0400
Mr.Z that is so funny to me that you read A Tale of Two Cities. Did you really read Steve's book when you found it. I was just reading the top and think that it's so funny that you really read it. My sister told me that she saw you reading it a little while ago. But this amuses me way too much. Good job though reading it so quickly. Anyways, i just felt like commenting on that...
- - Tue, 12 Apr 2005 19:31:16 -0400
Mr.Z the lab we did today was really interesting. It was cool looking at the different lights and seeing what colors it gave off. I think that the homework last night was really easy. I think that we should go over the entire review sheet tomorrow because those are good practice problems for the test on Thursday.
- - Mon, 11 Apr 2005 21:21:39 -0400
You did a good job today explaining things in class. It's a good idea if you give us a review sheet for us to do before the test on Thursday. Try to weave in some more interesting stories that you always have because those are helpful and lighten up the mood in the class. Keep up the good work.
- - Thu, 7 Apr 2005 22:17:58 -0400
Today you made class very interesting. It was funny showing us the different wavelengths by hopping around the class. It was amusing. Also, when you told us that the CIA can find out what you're doing on a computer by getting a radio to a certain frequency and that they still do it although it's ILLEGAL. Anyways, great job today making class interesting.
- - Wed, 6 Apr 2005 18:49:11 -0400
Danny, I'm pretty sure you have Mr.Z 2nd period not first but whatever. That review sheet you gave us to do the day before the test was extremely helpful. That way you can just look over the paper and everything can be fresh in your mind. Keep up the good work.
- - Tue, 15 Mar 2005 20:12:08 -0500
(\/)
(O.o)
(> <)o
/_|_\

Its a frickin lucky bunny that'll help me on the test tomorrow ><
Note: I hate springs.
- - Tue, 8 Mar 2005 14:58:45 -0500
MR. Z, this website is very helpful. It is really good to know if I missed a homework or lost it I can just come on the site and print it out. Well see you tommorow in homeroom and in class(1st period) -Danny
- - Tue, 8 Mar 2005 07:00:40 -0500
I think you did a good job reviewing. Also, I had more difficulty with the beginning and by the end it was easy. This oscillation stuff is kinda tough hope you go over it more.
- - Fri, 4 Mar 2005 19:48:32 -0500
the test was good. It entertained me for awhile. You should make your tests two pages Mr.z because some people were saying they didn't have time to finish it
- - Fri, 4 Mar 2005 10:08:33 -0500
I thought the beginning of th test was easy and by the end of it I had no idea what I was doing.
- - Wed, 2 Mar 2005 21:21:13 -0500
Hope the test is not hard

- - Wed, 2 Mar 2005 21:18:49 -0500
thanks for giving us extra credit
- - Wed, 2 Mar 2005 21:16:11 -0500
Thanks for the Review.It helped me understand it a lot better.
- - Wed, 2 Mar 2005 15:09:32 -0500
If anyone is looking for help n the test tomorrow, just keep in mind that volatge, current, and resistance are three completely different things: the methods that work for one don't work for the others, and the only way to convert between them is with V=IR. For current, you have the law that current into a fork equals current out; for voltage, you know the voltage is the same along any path down from one level to another; for resistance, you have Thevenin equivalents. Also, the thing most people got wrong on today's pop quiz was forgetting that V is the voltage difference between the two levels that your I and R are bridging, you can't just use the 3 V of the battery.

Good luck everyone!
- - Wed, 2 Mar 2005 06:53:59 -0500
Hey Mr.Z. I agree with Steve that it is a good idea to give kids a chance to boost up their grades. Also, I'm not sure that since we had a snow day if you'll postpone the test another day so we could have two days to review for it. I don't know but whatever decision you make i knoe you have our best interest in mind. Keep up the good work.
- - Tue, 1 Mar 2005 16:45:02 -0500
mr.z i'm just making sure is the sum of number 4 on circuits review 13.1666?
- - Mon, 28 Feb 2005 19:43:53 -0500
Hey Mr.Z, i think that was cool that you gave us options for Extra Credity. You really understnad that we need hepl and so you at least try unlike some other teachers. Keep up the good work
- - Mon, 28 Feb 2005 19:41:13 -0500
Hey Mr.Z, class was great today there wasnt Adriennne to bother me so I got to listen and participate, I think you shud move Adrienne or me (sry Adrienne), I like how you unexpectedly gave us the Test on Wednesday and gave us 2 days to review.

- - Mon, 28 Feb 2005 19:39:58 -0500
Hey MR.Z, i hope you had a great vacation skiing, I tried studying for Physics but didnt get it, I like how we got to use the cirucuits it was fun, Like Iris said like 4 times.
- - Wed, 16 Feb 2005 07:04:02 -0500
class was really good on monday and tuesday. i like the way that you let us use the circuits ourselves and experiment in different ways. I like that you gave us the opportunity to let us work on the experiment hands-on. Good job!
- - Mon, 14 Feb 2005 07:03:12 -0500
i just now looked at the snow monster pics and the other pics and i must say it was a very interesting experience. I didn't know you could build a snowman that high. I liked the end result of the snow monster it was cool. Just wanted to let you know Mr.Z my thoughts on it. That's all.
- - Mon, 14 Feb 2005 06:54:18 -0500
oh yeah, i forgot to mention on last wednesday when you were talking about the experience you had that day with your radioactive t.v. it helped me because it gave me an example of when electrical fields are in use with are everyday lives although not everyone would experience something like that. :)
- - Mon, 14 Feb 2005 06:51:52 -0500
on friday you did a really good job explaining electrical currents. I think the visual with the batteries and wires really helps us understand.
- - Sun, 6 Feb 2005 11:51:21 -0500
Hey Mr.Z, I dont quite understnad the actually fields and how some of them come in and some of them come out. Other than that, i really am getting everything.
- - Mon, 31 Jan 2005 17:34:36 -0500
Hey Mr. Z long time no type..well im really understanding these Electric Fields, and I was just wondering when will we be having a test on it, since the curriculum is all messed up on account of all the snow we've had..
~Seyonia~ Period 1
- - Sun, 30 Jan 2005 10:10:30 -0500
Hey Mr.Z, long time sinceI'ev written, just wanted to let you know, that letting us interact with materials helps us understand it more. Keep up the Good Work!
- - Thu, 20 Jan 2005 18:03:27 -0500
You guys what to know why I'm doing this it's because I have no life and no one else seem to write things anymore!
- - Thu, 20 Jan 2005 18:01:24 -0500
I like the way you demonstrate things

- - Thu, 20 Jan 2005 18:01:01 -0500
I like the way you demonstrate things

- - Thu, 20 Jan 2005 18:00:11 -0500
HOW come no else seem to write things

- - Thu, 20 Jan 2005 17:59:21 -0500
I like the way you demonstrate things

- - Tue, 18 Jan 2005 20:24:08 -0500
yeah I agree with Emily
- - Tue, 18 Jan 2005 17:34:06 -0500
Hey Mr.Z, I like the way that you actually understood where we were coming from , with our test grades, and I like how you had a day to review the test, it helps
- - Tue, 11 Jan 2005 20:53:31 -0500
Hey Mr. Z. How do you find the sun's "G"? Is it a number that's always the same like earth?
- - Tue, 4 Jan 2005 14:54:27 -0500
For anyone who's interested, I've posted the Snow Monster pictures on the website.
- - Sat, 25 Dec 2004 12:02:12 -0500
Hey Mr. Z! Merry Christmas Did you get my essay?
- - Thu, 23 Dec 2004 21:35:15 -0500
Hey Mr. Z

I just wanted to say that you have been great so far. Just keep it up.
So you next year!!!!!!!!!!!!!!!
- - Wed, 22 Dec 2004 18:37:16 -0500
where is the heat essay shett on your website?

- - Wed, 22 Dec 2004 09:05:03 -0500
Mr. Z I know you are trying you're best 2 make our class fun but they're some people that tries 2 ruin it, so just keep doing what you're doing and don't give up cuz I'm payin attention
- - Sun, 19 Dec 2004 20:58:39 -0500
Oh, I thought you bringing in the pancakes was hilarious, maybe you should share somtimes, jp,
- - Sun, 19 Dec 2004 20:58:00 -0500
Hey I like the fact you had a question about pancakes on the test, it must help some what
- - Sun, 19 Dec 2004 20:57:28 -0500
Hey Mr.Z , I agree with annie, you know not many people relaize that the effort you make in teaching us, heps us with our grades and future learnings. I think the fact you give us the worksheets and the notes before the quiz shows that you really want us to acclerate and do good, keep up the good work,

- - Wed, 15 Dec 2004 06:45:23 -0500
I didn't think the test was as hard as I espected it to be.
- - Sun, 12 Dec 2004 20:03:50 -0500
hey mr.z!
i know its probably a lot of you to make up those worksheets for us all the time. thanks for considering teh fact that the book was actually really hard. i love how you give us a page of notes before the testing days that really helps me study and review my notes. i'm glad u let us have notes on the tests. makes everything less confusing and more straight forward.
-Annie
- - Sat, 11 Dec 2004 11:09:41 -0500
I agree with Steve on that. I think that you have a very unique way of teaching physics from the other teachers. It's better that way. I don't like physics that much but I think that if I had a different teacher it would be more confusing than it already is.
- - Thu, 9 Dec 2004 19:02:59 -0500
Mr.Z I thought it was fun the way you are teaching power to us, by making us a part of the experiment, not many teachers can think of that, keep up the good work!
- - Wed, 8 Dec 2004 02:14:28 -0500
Hi, Mr.Z =]
Hmm..there are still some parts that I don't quite understand..
- Chu -> * 5th period * <-
- - Mon, 6 Dec 2004 17:06:58 -0500
Tomorrrow you need to explain the graphs more on detail.
I'm Still a little confused.

Donald 1th period


- - Fri, 3 Dec 2004 21:54:24 -0500
yes, i agree with donald. The pop quiz was hard and i feel that we didn't have enough time to do it. Diana-2nd period
- - Fri, 3 Dec 2004 10:47:22 -0500
THE POP QUIZ WAS HORRIBLE. IT WAS HARD.
DONALD 1TH PERIOD
- - Mon, 29 Nov 2004 18:38:25 -0500
I quote:
"but still if it will help people then do so"
Remember to read the whole post before commenting, makes sure you don't say anything stupid.

why are you taking it so seriously? dam your acting like I'm attacking you or something.

anyways I never implied that I can learn physics in one day, I implied that I can learn what Mr.Z is trying to teach in that day. Good job on the 91, who else got an A in your class? Majority of the people? Uh no.
- - Mon, 29 Nov 2004 17:37:31 -0500
Well maybe something you excel at doesnt mean other people excel at too, Im not trying to say I need help, but I am speaking for the majority of the people, you act like people can learn phyics in a day, for your fact, I got a 91 on my test proving I dont neccesarily talk in class and never listen.
- - Fri, 19 Nov 2004 18:45:29 -0500
I never said anything against your opinion. I only spoke for myself. I feel sorry for you people who don't get it but I don't like changes to anything I excel at but still if it will help people then do so. However taking longer on a subject will not help people get it if they NEVER listen.
- - Wed, 17 Nov 2004 19:32:47 -0500
Well I disagree with Pong, like I said its our future , so if I wanna get a good grade, some people too, he needs to at least do a review once in a while, but yeah thanks for the notes its gonna help
Good class today reviewing for the tes, its gonna help a lot

- - Wed, 17 Nov 2004 16:21:42 -0500
Great class today Mr. Z. Thanks for giving us a review packet and the answers for it before the test to help us out, just like on all the tests. It really makes a difference on how I do on the test. Mitch Gillis 5th period

- - Tue, 16 Nov 2004 18:17:13 -0500
some people don't need more time. The pace we're going is perfectly fine to me (just my opinion) though I think we should have a review of everything once in awhile. If you don't get whats going on in class then get help OUTSIDE of class instead of asking Mr. Z to change his lesson plans. Besides you'll get much more because even if Mr. Z goes slower I wouldn't be able to hear half the stuff said in class :D (7th period)
- - Tue, 16 Nov 2004 18:05:47 -0500
Hye, Mr.Z, I think you should be able to go a little slower, and have like a couple of more days to review for the test, I know you are trying to stay on task and not slip, so the other teachers dont see you fall, but they are not the ones who are trying to get an education, we are, and some people, need more time.
- - Thu, 11 Nov 2004 17:53:57 -0500
Hi Mr.Z this is Kelly from your 5th period class...I think that you should, go slower with the new stuff... and that you should go over the other stuff because you are going too fast and i don't understand the other stuff.. Thank-you.. ~*keLLy
- - Wed, 10 Nov 2004 20:11:38 -0500
dam, Mr.Z I regret not signing up for your computer programming thingy. I checked the section for that...Looks interesting. I've been dying to learn java and using applets but I've never been able to nail all that stuff down after tinkering around with them.
- - Wed, 10 Nov 2004 20:07:16 -0500
try studying -.-
- - Tue, 9 Nov 2004 18:33:34 -0500
who ever you are, i'm sure i wasn't speaking to you. I was speaking to Mr.Z. So hop off. I don't have time for you. Your dismissed.
- - Mon, 8 Nov 2004 17:13:43 -0500
Boo
- - Wed, 3 Nov 2004 16:39:12 -0500
Mr.z I agree with whoever that was....you shuld show solutions for the worksheets because it helps people understand it better to see wat they did wrong on their own then if they still dont get it, you can prob explain better in class...nd yes that test was hard...really hard...shulda had more time on the scalars nd stuff.
- - Sat, 30 Oct 2004 16:18:25 -0400
Hey Mr. Z! I had some problems with the test thursday, like I didn't really understand the scalars - maybe next year some good advice would be to give the students an assignment where they have to like make a list of real examples of scalers and vectors to help them understand it better..well thanks, see you in class monday !
Congratulations Red Sox :) 04 world series champs! ~ jenn * per.1
- - Sat, 30 Oct 2004 16:10:51 -0400
hey Mr.Z! the test was really hard on thursday especially the projectile motion questions. I didn't get it at all. Maybe next year you should spend a little more time going over the problems and even create a game like we did with units to help us understand it better. thanx! look forward to class on monday.
renee Period 2
- - Tue, 26 Oct 2004 22:12:14 -0400
i meant on your site
- - Tue, 26 Oct 2004 22:11:54 -0400
mr. z, i thought there would be definitions for all the words we learned.. vector, scalars, etc.
- - Tue, 26 Oct 2004 18:44:13 -0400
Mr. Z
can you plz show like all the solutions for the worksheets like you did with the pages from the book..dont just show the answers because that doesnt really help much...and i think ppl mite agree with me...nd this vector stuff is ummm...confusing.
- - Tue, 26 Oct 2004 06:58:20 -0400
HI Mr. Z!

The Homeowrk last night on projectile motion was hard. I didn't understand what to do. Can you go over it more in class today? Thanks,
Courtney S. per. 1



- - Mon, 25 Oct 2004 18:24:17 -0400
I really dont understand whats going on in class. :(
- - Thu, 21 Oct 2004 17:15:05 -0400
mr.z you should allow signatures. Would be cool if you turned the comments into a forum thing.
- - Wed, 20 Oct 2004 20:50:15 -0400
If anyone is working on the vector minigolf extra credit assignment, you can find copies of all the rules, scorecards, and courses we've had so far if you look at the relevant day on the Calendar. Also, if you're lucky enough to have a Macintosh computer at home running OS X, you can download the program that I wrote for making the minigolf courses.

Go Sox!

- - Mon, 18 Oct 2004 19:45:42 -0400
I am getting really frustrated by this whole treasure thing. I dont think you explained it enough, the whole thing about if you want to get there directly then you can use two cards, I am realy confused and I dont see how you can count the homework as a pop quiz, I am having trouble with the whole moving on a cordinate plane thingy, can you explain it more clearly

- - Sun, 17 Oct 2004 21:24:29 -0400
mr z, we definitely need to go over the free fall. i had no idea how to do that section on the test except like 1 or 2 problems. i thought there was insufficient data, could we at least maybe spend half the class or something like that going over that please?
- - Fri, 15 Oct 2004 20:18:08 -0400
HEY I JUST WANT TO CLEAR THIS I WAS TH PERSON WHO WROTE THE INFORMATION BELOW, MY NAME IS JORRY, SO LETS CLEAR UP THAT IT WAS IRIS.
- - Fri, 15 Oct 2004 20:15:22 -0400
...

- - Thu, 14 Oct 2004 18:53:17 -0400
Listen Jude, I dont know who you think you are trying to persuade people or teacher like Mr.Z, to change the test date. You should have studied and taken notes. Chop Chop or youll get a bad grade>>> :)
- - Thu, 14 Oct 2004 06:56:30 -0400
Periods 5 and 7 have the test today, 1 and 2 have it on Friday. The test is on everything from the three worksheets we've had these three nights: Average Velocity, Acceleration, and Free Fall. All the information you need for the test is on the review handouts you got last Friday, Linear Motion Problems, Linear Motion Notes, and Motion Graph Notes. You can have one page of notes, front and back, on the test.
- - Wed, 13 Oct 2004 21:26:32 -0400
is there a test tomorrow?
- - Wed, 13 Oct 2004 19:47:04 -0400
Alright..now i am COMPLETELY LOST, yes im lost. I have no idea what is going on in your class mr.z. Now people are going to say I don't take notes, but I actually do. I am just not getting anything. I heard that there is supposed to be a test tomorrow. If so, that makes NO sense because I am sure that not everybody understands what we are doing.
- - Wed, 13 Oct 2004 19:28:28 -0400
Alright..now i am COMPLETELY LOST, yes im lost. I have no idea what is going on in your class mr.z. Now people are going to say I don't take notes, but I actually do. I am just not getting anything. I heard that there is supposed to be a test tomorrow. If so, that makes NO sense because I am sure that not everybody understands what we are doing.
- - Sat, 9 Oct 2004 17:44:10 -0400
mr.z class was fun on friday and the worksheet was easy. Good job
- - Thu, 7 Oct 2004 20:54:05 -0400
And also, I'd think if we had notes typed up, and we could just print them off your site to be able to just put into our notebook would be a lot neater. But that's just my opinion. My other classmates should also give feedback on my last two comments, please.
- - Thu, 7 Oct 2004 20:52:12 -0400
Hey Mr Z, also, if you could and if it wasn't too big of a trouble, give like a brief summary of forumulas needed for the homework, this way we have extra notes on our homeworks to study from that's comin from a Physics expert. Just so I wouldn't have to go through the book and look through about 2 chapters trying to figure it out. Thanks.
- - Thu, 7 Oct 2004 16:50:16 -0400
First of all, I've looked back over tonight's homework, and it's too much. Do as much as you can.

Other important news: the test for next week will be moved back to Thursday. I'm scared that the other physics teachers will think I'm doing badly if I fall far behind them, but I really want you all to have a chance to understand this; I hope this will give us enough time.

I know that I've been presenting things at a bit too fast a pace. In the Units unit, it was somethign I had taught before, so I knew how to break it up into bite-sized chunks; even then, some things, like factor-label, really should have had more time devoted to them.

I think that I agree with whoever said we should have worksheets instead of book problems. The book problems have surprised me a couple of times with how difficult they are, and sometimes the book is even purposely misleading. It takes only a bit more work to write up a whole worksheet than it takes to write up answers and solutions for a set of book problems. Plus, I really like the fact that I have control over how the problem works out, when I make up a worksheet. Then at least I follow a logical progression of difficulty, and not have ridiculous thing like someone throwing an apple up just as far as her head.

Actually, I liked worksheets much better myself, when I was in school. For some reason I feel much more in control of the homewrok when all the problems are already written out in one place and I can see exactly how long the whole thing is. I had meant to do just worksheets, but somehow there just aren't enough hours in the day to grade all of your work and make a worksheet for every day.

So, be it resolved that from now on I will rely primarily on worksheets, and will aim at making them as clear as possible. Worksheets will also include, at the top, a summary of what you learne in class that the worksheet is meant to review; so if we learned the equation Δx = viΔt + .5a(Δt)2, that equation will be prominently displayed and explained on the worksheet, so that it's clear that problems will deal with it.

Some people also said that it would be good to have all the equations in one place. I'm working on making a massive review of how to do Linear Motion Problems. When it's done, I'll condense it into a single page of Linear Motion Notes with everything you need to know about using equations to solve linear motion problems.

Are people struggling with the graphical part of the unit? I've written up Motion Graph Notes listing what I was hoping you would have picked up by now; let me know.

I have what I hope is a fun activity planned dealing with graphs; it involves figuring out what story is told by a displacement graph showing a number of objects moving around, or making up a skit in which the action can be seen on a motion graph.

I'd like feedback on a few other things. I expected that lab pop quizzes would be more fun for you because they let you work with someone else, and it's an activity with a problem that you can actually see and reason about rather than just a word problem that you have to decode. However, they're taking a lot more class time than I had intended. Is that just because I gave them to you too soon, and you don't yet have a really firm grasp of what's going on? Do you in general prefer lab pop quizzes?

This might be a bit of a crazy idea, but in order to save time for me so that I can do things like write worksheets, do you think I could ask you all to grade your own homework with a check, check-minus, or check-plus, depending on how well you thought you understood it, and then leave your homework out ont he desk during the activity or pop quiz so that I could go around and check them all off? The three homework grades all have the same value to your class grade; all that matters to me is that you do the homework, not that you understand it perfectly. But I record the different flavors of check so that I can see who gets it and who's struggling; a large number of check-minuses on an assignment is a cue to me that I taught something badly.

It's true that if you had taken perfect notes in class, you would know all this stuff, and that even if you hadn't, you could get it all out of the book. But the book can be really hard to understand, and even Mr. Z. can't stay focused on a class that's boring. My job as a teacher is to help you learn, not just throw all the informatio in a pile at your feet and let you sort through it. So, I'll try to present it more clearly, and don't be discouraged if you're struggling.
- - Thu, 7 Oct 2004 16:13:15 -0400
Well maybe you people should start taking notes, and paying attention in class, its crazy how yall are so lazy, especially (2nd Period), keep up, its not Mr.Z's fault its yours.
- - Thu, 7 Oct 2004 16:11:17 -0400
Hey, Mr.Z, I think next time you try to give us a pop quiz and theres not enough time , you should wait till the next class. I actually agree with Daniel, you are moving a little to rapidly, anyway, your class is awesome though, just try to go a little more slow. E=(M*M)(C*C) yeah umm I still think the anonomys tip person was ........ (Iris)
- - Thu, 7 Oct 2004 13:30:13 -0400
Hey Mr.Z its Daniel. I want to thank you for putting up with all my really weird and odd questions at times. Anyways I can understand why you are using the book and I have no problems with it and quite honestly I really dont find it any diffrent from your worksheets. But I would like to spend a little more time on each subject since currently I feel that you are moving along a little to rapidly but mabey thats just me. Anyways I trust your judgement and I do understand that it is a bit easier to assign homework from the book instead of trying to make it up yourself. Anyways Just wanted to thank you again. In my opinion you are doing great. Oh and friday the 8th I will not be there (tommorrow) since I am running an infectious disease so sorry. Thanks Mr.Z
- - Wed, 6 Oct 2004 21:51:11 -0400
I got bored so yah...just going over every website I've visited last month...anyways I think you should summarize the whole displacement, velocity, and acceleration thing because looking at the graphs gets people mixed up.
- - Wed, 6 Oct 2004 21:50:04 -0400
I got bored so yah...just going over every website I've visited last month...anyways I think you should summarize the whole displacement, velocity, and acceleration thing because looking at the graphs gets people mixed up.
- - Wed, 6 Oct 2004 19:25:15 -0400
Hey Mr.Z, I kinda agree with the anyonomys tip person, (I think it was Iris)
ANyway, is there a way where you could make all the equations on one sheet, that way we have them for reference instead of looking in the books, and the notes. ...
- - Wed, 6 Oct 2004 15:41:23 -0400
Mr.Z,
I am a student from 2nd period. I don't know what's going on but the sad fact is...your class is becoming extremely boring. At 1st it was fun(your class) but now you lost it. You should make up more worksheets instead of giving us problems from the book because for the most part not many people understand the book. Your worksheets are more useful and easy to understand. But I think you were unaware that you were boring but I had to tell you, class is boring. If you don't believe me check how many heads rest on the table the next time you talk about something. It's pretty bad. Hopefully since I'm telling you this you can go back to your fun ways...I hope so.
From,
NoBoDy
- - Wed, 6 Oct 2004 00:02:37 -0400
hey mr z, is there anyway you could keep all these posts in chronological order in case people need to look through these and they find your post from like a week ago still up at the top. thanks
- - Mon, 4 Oct 2004 21:08:41 -0400
hey mr. z, is there any way you we don't have homework from the text book. they tend to be more confusing. i'd rather have the worksheets you make, because they actually make sense!
- - Sun, 3 Oct 2004 17:44:57 -0400
Hey Mr.Z, on the solutions for the homework on your website, for page "48" #4, the final step was 23*7*1000/60*60 s = 33.3 m/s but then that same format was on page 59:) 23*7*1000/60*60 m/s= a different answer , what happened???
- - Sun, 3 Oct 2004 15:44:39 -0400
Hey Mr. Z. i think there's a mistake on your website. Friday's homework was page 58 not 48 right?
- - Wed, 29 Sep 2004 12:27:37 -0400
These acceleration and velocity problems are very confusing, especially if you're not very confident with algebra. I'll try to make up a sheet of examples I can pass out, showing and explaining how to solve each sort of problem you can get. You can also find examples in the book. These problems will get easier when you have had more practice with them.

If you can just identify the variables that you have, and plug the numbers into the equation so that it's clear that it can be solved, you'll usually get full credit even if you don't solve the algebra. As I tried to explain in class, the physics part is really just translating it into algebra; I won't penalize you for not being an algebra whiz (although it certainly won't hurt you to relearn some of the algebra).
- - Tue, 28 Sep 2004 23:32:14 -0400
i have to agree with everybody, i don't think you explained the velocity that much...
- - Tue, 28 Sep 2004 19:51:14 -0400
Hello, Mr.Z I feel you are not explaining the objective or the steps in order to do the problems. I am really stuck on #3 on page 53, please try to do a problem of the homework in class so the students get a feel on what to do for homework. Sry but its the truth. Iris how was your day?
- - Mon, 27 Sep 2004 21:40:09 -0400
ahhh mr.z!! this velocity thing is kind of confusing...can you explain more about it?
- - Mon, 27 Sep 2004 19:37:08 -0400
Yo Mr.Z I dindt like todays class, Im sorry but I am honest. i felt you didnt explain or review as much for the homework. Other than that your class so far has been excellent. Just explain More!!
- - Mon, 27 Sep 2004 18:56:04 -0400
I love all the experiments and other fun things that we do in class. You make learning extremly exciting and I enjoy your class very much. I can't wait to learn more about physics!
From Mitch
- - Sun, 26 Sep 2004 15:10:06 -0400
HEY MR. Z COULD YOU GO OVER THE VELOCITY EQUATION AGAIN? I'M NOT SURE HOW TO APPLY THE FORMULA TO NUMBER 1 ON THE HOMEWORK. THANKS
- - Sat, 25 Sep 2004 21:49:03 -0400
hey Mr.Z,
where can i find the data on split times?i'll keep looking around for it...oh yea...you did a great job with the average velocity class...when you was running back and forth, i could not stop laughing! that was priceless...ooooohhh
- - Sat, 25 Sep 2004 14:32:05 -0400
hey mr.z! the experiment on friday was pretty cool =)
- - Fri, 24 Sep 2004 16:35:25 -0400
hey mr.z your class this year has so far been cool. I haven't had the need to check my pulse yet in your class so your doing a good job. Keep up the good work and fun experiments. Also, if you explain this linear motion stuff as well as you explained the dimensional analysis stuff it should be a breeze. Oh yea... today's experiment was fun and extremely funny. And I agree with Mitchell...class is splendid.
- - Fri, 24 Sep 2004 08:50:13 -0400
'tis class was dope 2day even tho i didnt do anythin but talk it still was ill
- - Thu, 23 Sep 2004 20:47:15 -0400
hmm... i noticed there's no homework due past 9/23.. are we gonna have a no-homework period? or are you just gonna update later?
- - Tue, 21 Sep 2004 17:52:06 -0400
hey Mr. Z! ok, well for one thing u need to explain more about that data analysis stuff because me, as well as other people, have no idea what to do.its confusing! ahhhhhhhhhhhhhhhhhhhhh! but anyways class is ok so far, not good, just ok. but ur a cool teacher. 7th period!!!!!!!!!!!!1

*m a i r s* (mary holland 7th period)
- - Mon, 20 Sep 2004 22:28:57 -0400
Hey Mr.Z,
ok i have 3 things: 1.have i told you lately what a good teacher you've been lately?inspirational! :@) 2. i kinda left my data from the experiment today in my physics folder which is in my locker as i type...i'll try to go the library or something during my study and lunch to do it but if it's not finished at least i'm writing to you so that you don't think that i'm just lazy an