# Review for Unit Parts Quiz

**Thursday 12/4/08**

### What you need to know

The "quiz" tomorrow is just a "checkpoint" to make sure we are ready to continue on past the Forest of Unit Parts. So, it doesn't count for a lot (only 20 points) and it will only take part of the period, but you want to do well (15 or better) so that you can get a star on the U step of your syllabus, showing that you have successfully passed that obstacle.

The checkpoint covers only what we have done this week:- Splitting up a unit into some number of parts, whether drawn as a box or drawn as multiples of the unit on a number line

- Identifying what is the unit, the denominator, and the part, in sentences, in pictures of units, and in pictures of number lines

- Writing relationships like "1/9×72 = 8" or "a fifth of a grok is a lirr" in both math and words, and translating between the two

- Drawing a number line to show a unit-part relationship

If you can do all the problems on this homework, you are in good shape. The checkpoint will also only be about as long as this homework.### Identifying unit, denominator, and part

- a) Identify the unit, denominator, and part in the picture below.

b) In English: A __ __ of a __ __ is a __ __.

c) In math symbols:

- a) Identify the unit, denominator, and part in the picture below.

b) In English: A __ __ of a __ __ is a __ __.

c) In math symbols:

### Writing equivalences

- a) Mark up the number lines below to show me that
**"A third of fifty one is the same as a fourth of sixty eight."**

b) How would I write "A third of fifty one is the same as a fourth of sixty eight" in math symbols?

- a) Mark up the units below to show me that
**"1/4 gorf = 1/8 blig."**

b) How would I write "1/4 gorf = 1/8 blig" in words?

### Drawing number lines

Remember to draw at least the first two multiples of the unit.- Below, draw a number line in which units 50 long are split in fifths, and mark how long each piece is.

- Below, draw a number line in which units 42 long are split into pieces 14 long. You will have to figure out the denominator in order to draw this correctly.

- Below, draw a number line in which the units are split into four pieces, with each of the pieces 15 long. You will have to figure out what the unit is.