###### Hawaii

###### May 8, 2021, 1:30:00 AM

###### Friday

###### Level 5

## Ms. Mari

### Target 1

###### Lesson Type:

Continuation

Geometry

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Congruence

Identify similar triangles.

###### Supporting targets:

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Prove that triangles are similar using SSS (Side-Side-Side), AA (Angle-Angle), and SAS (Side-Angle-Side).

###### 2:

Explain that triangles are similar if all corresponding angles are equal and all corresponding sides have the same ratio or proportion.

###### 3:

Find the ratio of corresponding sides and use that ratio to find unknown lengths.

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###### Grade:

6th

###### Vocabulary:

SIMILAR TRIANGLES, ANGLE-ANGLE THEOREM, SIDE-SIDE-SIDE THEOREM, RATIO, PROPORTION, CORRESPONDING ANGLES AND SIDES, CROSS-PRODUCTS

Activities:

- Reviewed characteristics of similar triangles and Angle-Angle Theorem

- Used cut out triangles from last time to examine the ratio of corresponding side lengths.

- Whiteboard exercise: Filled in the missing number given a proportion.

- Found cross-products, observed that they are equal in proportions.

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### Target 2

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### Target 3

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