Content Area: Math

 

Index: 4.1C Grade 6 CPI 3

 

Standard: 4.1 - Number and Numerical Operations

 

Strand: C - Estimation

 

Cumulative Progress Indicator: 3 - The student will determine the reasonableness of an answer by estimating the result of operations.

 

Grade: 6

 

Sample Activities:

 

·        Students estimate the size of a crowd at a rock concert from a picture. They share all of their various strategies with the rest of the class.

 

·        Students demonstrate their understanding by estimating whether or not they can buy a set of items with a given amount of money. For example: You have only $10. Explain how you can tell if you have enough money to buy: 4 cans of tuna @ 79 cents each, 2 heads of lettuce @ 89 cents each, and 2 lbs. of cheese @ $2.11 per lb.

 

·        Students place decimal points in multi-digit numbers to make absurd statements more reasonable. Some typical statements could be Mr. Brown averages 2383 miles per gallon when he drives to work, My dog weighs 5876 pounds, or Big Burger charges $99 for a large order of french fries.