standard_description: Know the formulas for the area and circumference of a circle and use them to solve problems; give an informal derivation of the relationship between the circumference and area of a circle.
problem_activity: Stage 1: Within 10
Required Preparation
Materials to Copy
Blackline Masters
Number Puzzles Addition and Subtraction Stage 1 Gameboard
Number Puzzles Digit Cards

Narrative
Students work together to use digit cards to make addition and subtraction equations within 10 true. Each digit card may only be used one time on a page.


aligns: no