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Content Area: Math
Index: 4.1B Grade 8 CPI 1
Standard: 4.1 - Number and Numerical Operations
Strand: B - Numerical Operations
Cumulative Progress Indicator: 1 - The student will use and explain procedures for performing calculations involving addition, subtraction, multiplication, division, and exponentiation with integers and all number types named above with: · Pencil-and-paper · Calculator
Grade: 8
Sample Activities: · Students choose a stock from the New York Stock Exchange and estimate and then compute the net gain or loss each week for a $1,000 investment in the company.
· Students use spreadsheets to "program" a set of regular, repeated, calculations. They might, for example, create a prototype on-line order blank for a school supply company that lists each of the ten items available, the individual price, a cell for each item in which to place the quantity ordered, the total computed price for each item, and the total price for the order.
· Students regularly have human vs. calculator races. Given a list of specially selected computation exercises (e.g., 53 x 20, 40 x 10, 95 + 17 +5 ), one student uses mental math strategies and another uses a calculator. They quickly come to realize that the human has the advantage in many situations.
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