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
Loading resource...
 

Similarity Problem Solving and Proofs

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

Objective: Students will be able to apply the definition of similarity to determine whether polygons, triangles in particular, are similar and solve for sides and angles when possible.

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
are the triangles
 
1
2
3
4
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
Katharine Sparks
 
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
Tom Chandler
 
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(3)
  Resources(15)
Saratoga Springs, NY
Environment: Suburban
Stephanie Conklin
 
Something went wrong. See details for more info
Nothing to upload
details
close