similarity

This lesson unit is intended to help you assess how well students are able to:

• Work with concepts of congruency and similarity, including identifying corresponding sides and corresponding angles within and between triangles.
• Identify and understand the significance of a
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This lesson unit is intended to help you assess how well students are able to identify and use geometrical knowledge to solve a problem. In particular, it aims to identify and help students who have difficulty in:

• Making a mathematical model of a geometrical situation.
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This lesson unit is intended to help you assess how students reason about geometry and, in particular, how well they are able to:

• Use facts about the angle sum and exterior angles of triangles to calculate missing angles.
• Apply angle theorems to parallel lines cut by a
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