Grade 4 · Math · Lesson 32

Explore Symmetry and Patterns

A shape is symmetrical if one half mirrors the other exactly — the dividing line is the line of symmetry. When you fold the shape along the line of symmetry, both halves match perfectly.

What this lesson teaches

1Identify lines of symmetry in shapes and objects
2Classify shapes as symmetrical or not symmetrical
3Recognize and continue repeating patterns

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