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Special Quadrilateral Clean Up

# Special Quadrilateral Clean Up

Unit 2: Introducing Geometry

Lesson 6 of 8

Lesson 6 of 8

## Objective: Students will be able to define special quadrilaterals, triangles, and circles terms.

2

#### Notes: Circles Vocabulary

*15 min*

Since this is an Introduction to Geometry unit, students need to know basic circles vocabulary. I gives notes on the following terms:

- Circle, radius, diameter
- Congruent circles, concentric circles
- Arc of a circle, endpoints
- Semicircle, minor arc, major arc
- Central angle, arc measure

After students write these definitions and draw sketches to match, I pass out examples and non-examples of chords, diameters, and tangents. I ask students to write a good definition for each term. I call on student volunteers to read their group's definition for each of these terms and make edits if necessary.

#### Resources

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- UNIT 1: Creating Classroom Culture to Develop the Math Practices
- UNIT 2: Introducing Geometry
- UNIT 3: Transformations
- UNIT 4: Discovering and Proving Angle Relationships
- UNIT 5: Constructions
- UNIT 6: Midterm Exam Review
- UNIT 7: Discovering and Proving Triangle Properties
- UNIT 8: Discovering and Proving Polygon Properties
- UNIT 9: Discovering and Proving Circles Properties
- UNIT 10: Geometric Measurement and Dimension
- UNIT 11: The Pythagorean Theorem
- UNIT 12: Triangle Similarity and Trigonometric Ratios
- UNIT 13: Final Exam Review

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- LESSON 1: Definitely, Maybe
- LESSON 2: Who's a Widget? Making Sense of Definitions
- LESSON 3: Recyled Definitions
- LESSON 4: Investigating Special Quadrilaterals
- LESSON 5: Presenting Special Quadrilaterals
- LESSON 6: Special Quadrilateral Clean Up
- LESSON 7: Introducing Geometry Review and Group Test
- LESSON 8: Introducing Geometry Unit Assessment

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