## Reflection: High Expectations Similarity Problem Solving and Proofs - Section 3: Classwork: Solve and Prove Similar Polygons

Before students would begin working on solving and proving similar polygons, I wanted to alert them of how I wanted them to work.  I displayed for the following information:

As math thinkers, students would need to attend to precision, support conclusions with multiple methods, and track strategies for sense making.   As math learners, they would need to be present and engaged, make connections to old ideas, and be willing to express confusion and persist through it.

By projecting my expectations, I explicitly encouraged students to marry their mathematical practices to their habits of mind and, as a result, led to greater willingness to engage with challenging problems.  As students worked in groups, I was pleased to notice an increased amount of respectful disagreement about solving methods and solutions.

How to Be Successful as Math Thinkers and Learners
High Expectations: How to Be Successful as Math Thinkers and Learners

# Similarity Problem Solving and Proofs

Unit 12: Triangle Similarity and Trigonometric Ratios
Lesson 2 of 11

## Big Idea: Students will deepen their understanding of triangle similarity by solving similarity problems and writing proofs.

Print Lesson
Add this lesson to your favorites
Standards:
Subject(s):
75 minutes

### Jessica Uy

##### Similar Lessons

###### Radian measure Day 2 of 2
12th Grade Math » Trigonometry as a Real-Valued Functions
Big Idea: Through sharing of problem solving strategies students will develop a description for measuring angles in radians and use the relationship with degrees to find special angles.
Favorites(1)
Resources(17)
Independence, MO
Environment: Suburban

###### Dilation and Similarity Unit Test
Geometry » Scaling Up- Dilations, Similarity and Proportional Relationships
Big Idea: Students will show what they know!
HSG-SRT.A HSG-SRT.B.5
Favorites(2)
Resources(20)
Ault, CO
Environment: Rural

###### Dilation Nation
Geometry » Transformers and Transformations
Big Idea: Students will review transformations using a brain pop and learn how to geometrically enlarge and shrink shapes.
Favorites(2)
Resources(15)
Saratoga Springs, NY
Environment: Suburban
sign up or
Something went wrong. See details for more info
 Nothing to upload details close