triangles

This lesson unit is intended to help you assess how well students are able to use geometric properties to solve problems. In particular, the lesson will help you identify and help students who have difficulty:

• Solving problems by determining the lengths of the sides in right
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This lesson unit is intended to help you assess how well students are able to produce and evaluate geometrical proofs. In particular, it is intended to help you identify and assist students who have difficulties in:

• Interpreting diagrams.
• Identifying mathematical knowledge
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This lesson unit is intended to help you assess how well students are able to use geometric properties to solve problems. In particular, it will help you identify and help students who have difficulty:

• Decomposing complex shapes into simpler ones in order to solve a problem.
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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 well students solve problems involving measurement and in particular, to identify and help students who have difficulty:

• Computing measurements using formulas.
• Decomposing compound shapes into simpler ones.
• Using
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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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This lesson unit is intended to help students to:

• Select appropriate mathematics to solve a problem.
• Compare and evaluate different methods for solving a problem and make generalizations about the appropriateness of different approaches.
• Understand the Pythagorean
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This lesson unit is intended to help you assess how well students are able to:

• Use the area of right triangles to deduce the areas of other shapes.
• Use dissection methods for finding areas.
• Organize an investigation systematically and collect data.
• Deduce a
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This lesson unit is intended to help you assess how well students are able to:

• Find the slopes and equations of linear graphs defined by pairs of coordinates.
• Calculate the slope and y-intercept of a straight line.
• Use the slope and y-intercept of
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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:

• Recall and apply triangle properties.
• Sketch and construct triangles with given conditions.
• Determine whether a set of given conditions
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