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Analyzing Angles

Resource:
Analyzing Angles

This incomplete core resource supports students in developing relationships between the measure of the interior, exterior, and remote angles of a triangle.

All Resources From:
• Unit 2

#### Proofs about Congruence

Finding vertical and supplementary angles (Group Activities)

Resource:
Finding vertical and supplementary angles (Group Activities)

NOTES:
1. This activity incorporates specific student roles for group work.
2. There are two different sets of materials so that the same activity structure can be done twice.
Activity Objectives:
- To help students learn how to work together effectively.
- To help students see connections between vertical and supplementary angles in geometry.
- To help students see connections between algebra and geometry.

All Resources From:
• Unit 2

#### Proofs about Congruence

Find the Value of an Angle

Resource:
Find the Value of an Angle

Students will use what they know about angles in diagrams to find the value of a missing angle.

All Resources From:
• Unit 2

#### Proofs about Congruence

GeoGebra Slider for Supplementary & Vertical Angle Relationships

Resource:
GeoGebra Slider for Supplementary & Vertical Angle Relationships

Slider that represents intersecting lines to help visualize supplementary and vertical angle relationships.  This can also be used to represent the 360 degrees of a circle.

All Resources From:
• Unit 2

#### Proofs about Congruence

GeoGebra Slider that represent parallel lines cut by a transversal

Resource:
GeoGebra Slider that represent parallel lines cut by a transversal

Slider that allows the intersections to move location.  Helps with visualization of the angle relationships when parallel lines are cut by a transversal.

All Resources From:
• Unit 2

#### Proofs about Congruence

Inscribing and Circumscribing Right Triangles

Resource:
Inscribing and Circumscribing Right Triangles

A Classroom Challenge (aka formative assessment lesson) is a classroom-ready lesson that supports formative assessment. The lesson’s approach first allows students to demonstrate their prior understandings and abilities in employing the mathematical practices, and then involves students in resolving their own difficulties and misconceptions through structured discussion.

All Resources From:
• Unit 7