  May 18, 2007
6th grade math

There will be a test next Tuesday on metrics and customary units. Students are working on ratios and using them to convert units of customary measure. They need to remember the mnemonic "King Henry Dies By Drinking CHocolate Milk." This reminds them of the order of metric units. They need to know that you begin with the units that you are given and move your decimal point the number of units given in the same direction. The B stand for the basic units which are grams, liters and meters. This means that if you are given 7.9mg and want to change it to grams...grams are 3 units to the left so we will move the decimal 3 units to the left and get.0079
Students also made a chart of customary units. They need to remember that there are 8 oz. in a cup...2 cups in a pint, 2 pints in a quart and 4 quarts in a gallon. Using their knowledge of unit rates, the should be able to convert measures such as 6 pt. = ____ c. by creating a ratio that shows 1 pt. has 2 cups ; therefore we multiply 2 x 2 to find the number of cups in 6 pints. Remember - when you are moving from a smaller unit to a larger one you divide. When moving from a larger unit to a smaller one, you multiply! Homework tonight is practicing these skills in their workbooks unit 7-7 Practice (evens).

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