Unpacking the Outcome	

10.7 Demonstrate  understanding (similarity of convex polygons).
	
Outcome (circle the verb and underline the nouns or noun phrases)	

WA 10.7 Demonstrate understanding of similarity of convex polygons, including regular and irregular polygons.
	
KNOW	UNDERSTAND	BE ABLE TO DO	

Vocabulary – congruent, corresponding sides, corresponding angles, polygon

Measurement – how to measure angles and sides of polygons using various tools

Calculation –how to use proportional reasoning (ratio)

Unit conversion – how to use/convert SI and Imperial systems

Verification
How to verify whether two or more given polygons are similar.

Drawing Methods to draw similar polygons.

Similarity knowledge
How to apply similarity knowledge to create and solve situational questions that involve similarity polygons.

	Polygons are considered similar provided there is a special relationship between the corresponding sides and/or the corresponding angles.

There are many strategies to determine if two or more convex polygons are similar.

Congruency and similarity have a relationship.

	1.Analyze and generalize about the relationships between: corresponding sides of two or more polygons that have corresponding angles of equal measure and corresponding angles of two or more polygons that have corresponding sides that are proportional.
2.Develop, generalize, and explain, and apply strategies for determining if two or more convex polygons are similar.
3.Verify whether two or more given polygons are similar.
4.Draw polygons that are similar to a given polygon, explain strategies used, and justify why the polygons are similar.
5.Apply knowledge and skills to situational questions to self, family, or community that involve similarity of polygons.
6.Create and solve situational questions relevant to self, family, or community that involve similarity of polygons.
7.Critique the statement “All congruent polygons are similar and all similar polygons are congruent.”	
ESSENTIAL QUESTIONS	

How are congruency and similarity related?
What criteria make two polygons similar?
What information do I need to know to determine similarity?
What strategies can I use to prove similarity?