This activity guides students to develop rules for the properties of exterior angles of a triangle.  Through inquiry-based learning, students are able to discover the theorem on their own and therefore understand the concept better and can remember why it works.

Exterior Angles of a Triangle Inquiry Activity

This activity guides students to develop rules for the properties of exterior angles of a triangle. Through inquiry-based learning, students are able to discover the theorem on their own and therefore understand the concept better and can remember why it works.

Angle relationships. I would love to do this on the floor of the classroom or in the hallway then have pairs of students run to things like "Vertical angles, alternate interior angles, alternate exterior angles, linear pairs, supplementary angles, congruent angles, ect" as I call them out.

Angles formed on parallel lines cut by a transversal - notes and using tape on a whiteboard to create an example

Two pages of introduction to polygon vocabulary, interior angle sum, exterior angles, naming, and parts of the polygon. Twelve practice problems involve solving from variables, determining the number of sides of a polygon, and finding interior and exterior angles. Answer key included. The one-page reference sheet is a great way for SPED and ESL/ESOL students to have a quick way to access the information they need for polynomials. Happy Solving! from the miss jude math! shop

Polygons graphic organizer and practice

These hands on geometry lessons are such a great way to help kids see the relationship between the interior and exterior angles in triangles! This free download is simple to use and includes teaching tips and an answer key!

Understanding Interior and Exterior Angles in Triangles

This FREE printable lesson guides students in a hands-on way to help them see the relationships between interior and exterior angles in triangles!

Kelsoe Math: Triangles Unit: Interior Angle Sum and Exterior Angle (Remote Interior Angles)

Sum of the Remote Interior Angles of a Triangle is Equal to the Exterior Angle INB - Math by Tori

Exterior Angle Theorem Maze - Finding Angle Measures

Exterior Angle Theorem Maze - Finding Angle Measures

Teaching Geometry, Geometry Lessons, Math 2, Math Class, Triangle Angles, Exterior Angles, Class Activities, Math Resources, Middle School Maths

This is a coloring activity for a set of 12 problems on the exterior angle sum theorem.  The exterior angle is equal to the sum of the two remote interior angles.  Problems 1 - 6 are easy and problems 7 - 12 are challenging where algebra is reinforced.This product is included for free in the triangle activity bundle.Posted:   9/22/15 so 50% off through 9/25/15

Triangles: exterior angle sum theorem #1 coloring activity

This is a coloring activity for a set of 12 problems on the exterior angle sum theorem. The exterior angle is equal to the sum of the two remote interior angles. Problems 1 - 6 are easy and problems 7 - 12 are challenging where algebra is reinforced.

Inquiry Lesson for Exterior Angles Theorem for Triangles

Exterior Angles of a Triangle Inquiry Activity

My 8th Grade Math & High School Geometry students loved this Exterior Angle Theorem Maze.  This was the perfect math worksheet for my Middle School Math & Secondary Math students.  This really was a fun activity to help students strengthen their skills in solving equations related to exterior angle theorems! 8.8D Use informal arguments to establish facts about the angle sum and exterior angle of triangles.

Exterior Angle Theorem Maze - Solving Equations

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Nice! a practical demonstration of the exterior angles of a polygon summing to 360o.

Thanks to for sharing these pictures showing a practical demonstration of the exterior angles of a polygon summing to

This is a maze of 11 triangles with an exterior angle that students must use the Exterior Angle Theorem and their ability to set up & solve equations to solve for x. This self-checking activity helps students strengthen their skills in solving equations involving the exterior angle theorem.Important InformationNot all boxes are used in the maze to prevent students from just guessing the correct route.

Exterior Angle Theorem Maze - Solving Equations

This is a maze of 11 triangles with an exterior angle that students must use the Exterior Angle Theorem and their ability to set up & solve equations to solve for x. This self-checking activity helps students strengthen their skills in solving equations involving the exterior angle theorem.Important InformationNot all boxes are used in the maze to prevent students from just guessing the correct route.

Kelsoe Math: Triangles Unit: Interior Angle Sum and Exterior Angle (Remote Interior Angles)

Last week, we returned to school after Christmas break. Monday was a teacher workday, so I worked all day on grades and lesson plans for th.

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