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- HSG-SRT.A.1Verify experimentally the properties of dilations given by a center and a scale factor:
- HSG-SRT.A.2Given two figures, use the definition of similarity in terms of similarity transformations to decide if they are similar; explain using similarity transformations the meaning of similarity for triangles as the equality of all corresponding pairs of angles and the proportionality of all corresponding pairs of sides.
- HSG-SRT.A.3Use the properties of similarity transformations to establish the AA criterion for two triangles to be similar.

HSG-SRT.A.2

Given two figures, use the definition of similarity in terms of similarity transformations to decide if they are similar; explain using similarity transformations the meaning of similarity for triangles as the equality of all corresponding pairs of angles and the proportionality of all corresponding pairs of sides.

Transformations + Similarity

Geometry

» Unit:

Sweet Similar Shapes

Big Idea:Students will use a pair-share activity and activate their prior knowledge to discover how transformations connect to AA criterion.

Stephanie Conklin

Suburban Env.

16 Resources

9 Favorites

16 Resources

9 Favorites

Finally Finals #1

Geometry

» Unit:

Finally Finals

Big Idea:It's time for Jeopardy! In this review lesson, students will play Jeopardy to review key topics covered in the Geometry curriculum like transformations and perpendicular bisectors.

Stephanie Conklin

Suburban Env.

10 Resources

7 Favorites

10 Resources

7 Favorites

Introduction to Similar Figures

Geometry

» Unit:

Similar Figures

Big Idea:What are dilations good for? Let's look at similar figures!

Beth Menzie

Urban Env.

10 Resources

28 Favorites

10 Resources

28 Favorites

Discovering Similar Triangles

Geometry

» Unit:

Sweet Similar Shapes

Big Idea:Completing a hands-on activity, students will cut, categorize and discover properties of similar triangles.

Stephanie Conklin

Suburban Env.

29 Resources

22 Favorites

29 Resources

22 Favorites

Dilation Nation

Geometry

» Unit:

Transformers and Transformations

Big Idea:Students will review transformations using a brain pop and learn how to geometrically enlarge and shrink shapes.

Stephanie Conklin

Suburban Env.

15 Resources

3 Favorites

15 Resources

3 Favorites

Similar Triangle Practice

Geometry

» Unit:

Similarity in Triangles

Big Idea:In this lesson, students apply the properties and theorems studied throughout the unit to justify that triangles are similar.

Marisa Laks

Urban Env.

17 Resources

2 Favorites

17 Resources

2 Favorites

More Discovering Similar Triangles

Geometry

» Unit:

Sweet Similar Shapes

Big Idea:Students will finish discovering key properties of similar triangles and will practice identifying if two shapes are similar.

Stephanie Conklin

Suburban Env.

14 Resources

2 Favorites

14 Resources

2 Favorites

Review Day for Sweet Similar Shapes

Geometry

» Unit:

Sweet Similar Shapes

Big Idea:Students will use the SMART Clickers to review key topics for this unit like, identifying similar shapes, and then complete a practice test.

Stephanie Conklin

Suburban Env.

14 Resources

14 Resources

Assessment for Sweet Similar Shapes

Geometry

» Unit:

Sweet Similar Shapes

Big Idea:Students will be assessed on their knowledge of similarity on a test or problem set.

Stephanie Conklin

Suburban Env.

12 Resources

1 Favorite

12 Resources

1 Favorite

Definition of Similarity and Similar Triangles

Geometry

» Unit:

Triangle Similarity and Trigonometric Ratios

Big Idea:Students' prior knowledge of transformations and congruence helps them make connections as they learn to use similarity shortcuts.

Jessica Uy

Suburban Env.

28 Resources

1 Favorite

28 Resources

1 Favorite

End of Year Assessment

Geometry

» Unit:

Final Assessment

Big Idea:This is a comprehensive assessment of all content learned to date.

Marisa Laks

Urban Env.

12 Resources

1 Favorite

12 Resources

1 Favorite

Radian measure Day 2 of 2

12th Grade Math

» Unit:

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.

Katharine Sparks

Suburban Env.

17 Resources

1 Favorite

17 Resources

1 Favorite

Triangle Similarity Criteria

Geometry

» Unit:

Similarity

Big Idea:Enough is enough...but what is enough? In this lesson, students will determine the criteria that are sufficient for determining triangle similarity.

Anthony Carruthers

Suburban Env.

15 Resources

2 Favorites

15 Resources

2 Favorites

End of Year Assessment Review Day 3 of 4

Geometry

» Unit:

Final Assessment

Big Idea:In this lesson, students practice problems involving concepts from the units on similarity, trigonometry and coordinate geometry.

Marisa Laks

Urban Env.

11 Resources

11 Resources

Similarity Group Assessment

Geometry

» Unit:

Triangle Similarity and Trigonometric Ratios

Big Idea:Students will be able to apply their understanding of triangle similarity in novel ways to write proofs and demonstrate their understanding on a group assessment.

Jessica Uy

Suburban Env.

12 Resources

12 Resources

HSG-SRT.A.1

Verify experimentally the properties of dilations given by a center and a scale factor:

HSG-SRT.A.2

Given two figures, use the definition of similarity in terms of similarity transformations to decide if they are similar; explain using similarity transformations the meaning of similarity for triangles as the equality of all corresponding pairs of angles and the proportionality of all corresponding pairs of sides.

HSG-SRT.A.3

Use the properties of similarity transformations to establish the AA criterion for two triangles to be similar.