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Content Area: Math
Index: 4.1C Grade 4 CPI 1
Standard: 4.1 - Number and Numerical Operations
Strand: C - Estimation
Cumulative Progress Indicator: 1 - The student will judge without counting whether a set of objects has less than, more than, or the same number of objects as a reference set.
Grade: 4
Sample Activities:
· Students estimate the numbers represented by groups of base ten blocks or bundles of popsicle sticks. For example, one set might consist of 1 hundred, 6 tens, and 3 ones, and the other 0 hundreds, 17 tens, and 7 ones. Students first estimate which is more without arranging the blocks or counting them and then they determine the correct answer. These kinds of proportional models allow the "quantity of wood" to be proportional to the actual size of the number.
· Students read The Popcorn Book by Tomie dePaola and make estimates with popcorn. For example, they might consider two quantities of popcorn, one popped and one unpopped. Which contains the largest number of kernels? They might also predict how many measuring cups the unpopped popcorn will fill once it is popped and find out the result after popping the popcorn. (The total number of cups made may be surprising.)
Kidspiration Activitiy:
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