Measurement Cheat Sheet!!!

Our unit test is on Thursday April 23; the test will cover Area & Perimeter, Time and Measurement (Customary and Metric).  Here is a cheat sheet for the measurements we have been converting and exploring, which need to be memorized for the test.

Money:
5 pennies = 1 nickel
10 pennies = 1 dime
25 pennies = 1 quarter
4 quarters = 1 dollar
100 pennies = 1 dollar
**students are also responsible for adding/subtracting money, including making change**

Time:
60 seconds = 1 minute
60 minutes = 1 hour
24 hours = 1 day
7 days = 1 week
365 days = 1 year
52 weeks = 1 year

Customary Length:
12 inches = 1 foot
3 feet = 1 yard
5, 280 feet = 1 mile
1,760 yard = 1 mile

Customary Weight:
1 pound (1 lb) = 16 ounces (16 oz.)
2,000 lbs = 1 Ton

Customary Volume:  (Remember the Land of a Gallon story and visual...you may write this on the test as soon as you get it!!)
1 gallon = 4 quarts
1 quart = 2 pints
1 pint = 2 cups
1 cup = 8 fluid ounces (8 fl. oz.)
1 gallon = 8 pints
1 gallon = 16 cups

Metric:  (Think: "King Henry Died Unusually Drinking Chocolate Milk!)
Our prefixes come from our saying and are ordered greatest to least:
Kilo-, Hecto-, Deca-, UNIT, Deci-, Centi-, Milli-

1 kilo- = 1,000 units
1 unit = 100 centiunits
1 unit = 1,000 milliunits

Metric Conversion Rule: When converting a larger unit to a smaller unit (left to right on our chart), we use MULTIPLICATION.  When converting small units to a larger unit, we use DIVISION (right to left on our chart).  These movements represent powers of 10; moving 2 columns to the right is the same as multiplying by 100 (10 x 10) or moving 4 columns to the left is the same as dividing by 10,000.

In the metric system, when we are measuring LENGTH, we measure in meters; when are measuring WEIGHT, we measure in grams; when we are measuring VOLUME, we are measuring in liters.  In our room, we have been focusing primarily on units such as: millimeters, kilograms, liters, and centimeters as these are the most familiar to our lives, but students needs to have an understanding of the system on the whole.

Practicing these facts 5 minutes a night until next Thursday should provide a great foundation for your child.