## Chord and Tangent Group Challenge - Section 1: Group Challenge: Chord and Tangent Problems

*Chord and Tangent Group Challenge*

*Chord and Tangent Group Challenge*

Chord and Tangent Group Challenge

# Chord and Tangent Group Challenge

Unit 9: Discovering and Proving Circles Properties

Lesson 3 of 8

Lesson 3 of 8

## Objective: Students will be able to solve problems by applying chord and tangent properties.

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**MP1**). I like using the Chord and Tangent Group Challenge to ensure that all students in a group are held accountable to the lesson’s learning objectives. When groups call me over to check in, I hold each member of the group accountable by shuffling their papers, selecting one paper at random, and quizzing that student before letting them advance to the next level.

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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: Foundational Circles Vocabulary and Chord Properties
- LESSON 2: Tangent Properties
- LESSON 3: Chord and Tangent Group Challenge
- LESSON 4: Arcs and Angles: Central and Inscribed Angles
- LESSON 5: Circumference-Diameter Ratio and Arc Length
- LESSON 6: Review: Arcs, Angles, Chords, Tangents, and Proof
- LESSON 7: Prove Circles Conjectures
- LESSON 8: Circles Unit Assessment

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