Conversion

Wednesday 10/22/08

Do-Now: Coin Conversions

  1. Suppose that you have six quarters. How many is that of...
    a) ... pennies?

    b) ... nickels?

    c) ... dimes?

I can convert a measurement into different units

  1. In order to convert a measurement into different units, I need to know...




  2. We will work together as a class to figure out how many of one liquid measure are equal to another. Record below what we find out.


1 gallon =      quarts1 quart =      pints1 pint =      cups

Using conversion rates for liquid measures

  1. How many cups are there in a gallon?



  2. For the blue tupperware we are using in class...
    a) How much does it hold in cups?


    b) Show below how to convert some of those cups into bigger units.



Conversion cards game

Use the conversion cards to find the answer to each of the following:

  1. 1 cup, 1 pint, and 1 quart in cups =

  2. 3 cups, 2 pints, and 2 quarts in cups =

  3. 2 cups, 3 pints, and 1 quart in pints =

  4. 4 cups, 1 pint, and 2 quarts in pints =

  5. 8 cups, 2 pints, and 1 quart in quarts =

  6. 2 cups, 3 pints, and 3 quarts in quarts =

  7. 6 cups, 1 pint, and 2 quarts in gallons =

  8. 5 quarts, 5 pints, and 2 cups in gallons =

Conversion Practice

How many cups is that?

Please record your work mathematically. For example, you might write:
3 pints + 2 quart = 7 pints = 14 cups
You will not get credit for just an answer.
  1. If I have three pints, how many cups is that?



  2. If I have two quarts, how many cups is that?



  3. If I have a pint and two quarts, how many cups is that?



  4. If I have three cups, two pints, and one quart, how many cups is that all together?



  5. How many cups is one gallon?



How can I use the least units?

Please record your work mathematically. For example, you might write:
11 cups = 1 cup + 5 pints = 1 cup + 1 pint + 2 quarts
You will not get credit for just an answer.
  1. If I have to measure out 8 cups, how can I do that using the least number of units?



  2. If I have to measure out 7 cups, how can I do that using the least number of units?



  3. If I have to measure out 13 cups, how can I do that using the least number of units?



  4. If I have to measure out 27 cups, how can I do that using the least number of units?