standard_description: Explain why addition and subtraction strategies work, using place value and the properties of operations. (Explanations may be supported by drawings or objects.)
problem_activity: Stage 1: Add
Required Preparation
Materials to Gather
Connecting cubes
Counters
Materials to Copy
Blackline Masters
5-Frame
Number Mat 1–5
5-frames Stages 1 and 2 Recording Sheet

Narrative
Students begin with a full 5-frame and roll to see how many counters to add.


aligns: no