standard_description: Recognize a line of symmetry for a two-dimensional figure as a line across the figure such that the figure can be folded along the line into matching parts. Identify line-symmetric figures and draw lines of symmetry.
problem_activity: Stage 1: Add and Subtract within 10
Required Preparation
Materials to Copy
Blackline Masters
Compare Stage 1 Addition Cards to 10
Compare Stage 1 Subtraction Cards to 10

Narrative
Students use cards with addition and subtraction expressions within 10.


aligns: no