# How are similar figures and their scale factors used to write

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Curriculum: Katherine Baker Teacher / Team Name: Geometry Honors

Learning-Focused Toolbox Date: July 24, 2011 ET

Topic: Unit 7: Proportions and Similarity (HON)

Subject(s): Math

Days: 13 Grade(s): 8th, 9th, 10th, 11th, 12th

Key Learning: Similar figures and their scale factors will be used to write proportions to solve problems.

Unit Essential Question(s): How are similar figures and their scale factors used to write proportions to solve problems?

Concept:

Ratios and Proportion

Concept:

Similar Figures

Lesson Essential Question(s):

Lesson Essential Question(s):

How do you use ratios to solve problems involving proportions and How do you solve problems using the properties of similar

similar figures? (A)

polygons? (A)

How do you use proportional lengths within triangles to find segment measures? (A)

How do you identify similar triangles using AA, SSS, SAS similarity? (A)

How do you interpret scale models and use scale factors to solve How can you recognize and use proportional relationships of

problems? (A)

simliar triangles? (A)

How do you verify similarity after a similarity transformation? (A)

Vocabulary: ratio, proportion, cross product, midsegment of a triangle, scale model, scale drawing

Vocabulary: similar polygons, similar ratio, scale factor, dialation, similarity transformation, scale factor

Additional Information: Sections: 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, 7.7

Attached Document(s):

Page 1 of 1

Curriculum: Katherine Baker

Teacher / Team Name: Geometry Honors

Vocab Report for Topic: Unit 7: Proportions and Similarity (HON)

Subject(s): Math

Concept: Ratios and Proportion ratio proportion cross product midsegment of a triangle scale model scale drawing -

Concept: Similar Figures similar polygons similar ratio scale factor dialation similarity transformation scale factor -

Learning-Focused Toolbox Date: July 24, 2011 ET

Days: 13 Grade(s): 8th, 9th, 10th, 11th, 12th

Page 1 of 1

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