#### Math - 2018-19

# 3.13 - Congruence

**The student will **

**identify**and**describe**congruent and noncongruent figures.

*Adopted: 2016*

### BIG IDEAS

- So that I can understand that some shapes are the same even when their position or location changes
- So that I can create a matching copy of a shape or image

### UNDERSTANDING THE STANDARD

- Congruent
figures have the same size and shape. Noncongruent figures do not have exactly
the same size and shape. Opportunities for exploring figures that are
congruent and/or noncongruent can best be accomplished by using physical
models.
- Congruent plane figures remain congruent even if they are in different spatial orientations.
- Figures that are congruent or noncongruent may be identified by using direct comparisons and/or tracing procedures.

### ESSENTIALS

**The student will use problem solving, mathematical communication, mathematical reasoning, connections, and representations to**

- Identify examples of congruent and noncongruent figures.
- Determine and explain why plane figures are congruent or noncongruent.

### KEY VOCABULARY

*Updated: Mar 15, 2019*