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Content Area: Math
Index: 4.3C Grade 2 CPI 2
Standard: 4.3 - Patterns and Algebra
Strand: C - Modeling
Cumulative Progress Indicator: 2 - The student will construct and solve simple open sentences involving addition or subtraction · Result unknown (e.g., 6 – 2 = __ or n = 3 + 5) · Part unknown (e.g., 3 + ÿ = 8)
Grade: 2
Sample Activities:
· Kindergarten students play the hide the pennies game. The first player places a number of pennies (say 7) on the table and lets the other player count them. The first player covers up a portion of the pennies, and the second player must determine how many are covered. They may represent the situation with markers or pictures to help them. Some second-grade students are ready to write a number sentence that describes the situation.
· Students are given a bag with Unifix cubes. They are told that the bag and 2 cubes balance 7 cubes. They use a balance scale to find how many cubes are in the bag.
Kidspiration Activity:
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