Curated OER
Triangle's Interior Angles
Given a pair of parallel lines and a triangle in between, geometers prove that the sum of the interior angles is 180 degrees. This quick quest can be used as a pop quiz or exit ticket for your geometry class.
Willow Tree
Interior Angles, Exterior Angles, and Diagonals of Polygons
How does the number of sides of a polygon affect the angle measures? Learners recognize a pattern in finding the total measure of interior and exterior angles and the number of diagonals. They use the patterns to calculate the number of...
Curated OER
Sum of Interior Angles
In this sum of interior angles instructional activity, 10th graders solve 10 different problems that are related to determining the sum of various interior angles in figures. First, they determine the sum of the interior angles of a...
Curated OER
Interior and Exterior Angles of Polygons
In this angles of polygons worksheet, 10th graders solve and complete 18 different problems that include determining various interior and exterior angles. First, they determine the measure of various angles described in the first half of...
Houghton Mifflin Harcourt
Angle Pairs - Reteach 14.2
Practice recognizing types of additive angles with a worksheet in which pupils review adjacent, interior and exterior, complementary, and supplementary angles and use a diagram to give examples of them. Be aware that the diagram involves...
Curated OER
Tile Patterns II: Hexagons
After learning that the sum of interior angles for triangles is 108 degrees, take it further to show that the sum of angles in any polygon is the same! Using hexagons, pupils practice finding the measure of the six congruent angles. Make...
Curated OER
Angles Activities
A series of geometry worksheets have mathematicians constructing, dissecting, overlapping, and measuring as they analyze angles in various contexts. Learners use symmetry and reflections in a compass rose to write instructions on...
Curated OER
Tile Patterns I: Octagons and Squares
This can be used as a critical thinking exercise in congruence or as a teaching tool when first introducing the concept. Four octagons are arranged in such a way that a square is formed in the middle. With this information, geometry...
Curated OER
Relationship between Exterior and Remote Interior Angles in a Triangle
In this triangle instructional activity set, 9th graders find the relationship between the exterior and remote interior angles in triangles. They determine the formula, and apply it in 15 problems. They use a compass as needed to measure...
Curated OER
Interior, Exterior, and on the Angle
For this geometry worksheet, 10th graders determine if the given point is in the exterior, interior, or on the given angle. The one page worksheet contains eight problems. Answer key is provided.Â
Illustrative Mathematics
Sum of Angles in a Polygon
How can learners use algebra to solve a geometry problem? Help learners create an equation that shows the relationship between the number of sides of a polygon and the sum of the interior angles. Students are asked to divide the...
Curated OER
Plate Tectonics Day 4 Earth's Interior Structure and Convection Currents
Learners introduced to the interior structure of the Earth. They explore how the Earth's interior is broken down according to both it's physical properties and it's chemical composition. Students explore how convection currents within...
Curated OER
Housing Project
Find everything you need for a two-week home construction simulation project for your high school economics class. They come up with the plans for a custom home including the cost per square foot, interest rate, mortgage term, down...
Curated OER
6-8 Interior Design: Designing My Dream Room
Students analyze interior design as a profession. In this interior design lesson, students design their own dream bedroom and explore interior design as a profession. Students draw a scaled drawing using graph paper and appropriate...
Curated OER
Polygons - Sum of Interior Angles
In this polygon worksheet, students determine the sum of the interior angles of a figure. Given the sum of the interior angles, they determine the number of sides of a polygon and the measure of one central angle. This one-page worksheet...
Curated OER
Interior Angles of Polygons
For this online math worksheet, high schoolers determine the interior angles of polygons given their exterior measurements. This excellent resource allows the students to check their answers, and to get "hints" should they run into...
Curated OER
Interior Design Final Project
High schoolers are introduced to the requirements for their final interior design project. In groups, they compare and contrast the characteristics of floor plans to the needs of families living in the houses. Individually, they design...
Curated OER
Interior and Exterior Angles of Polygons
In this online math worksheet, students find the interior and exterior angles of polygons. This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A terrific teaching tool!
Curated OER
Interior and Exterior Angles
In this interior and exterior angles activity, 10th graders solve 10 different problems that include determining the interior and exterior of various triangles. They determine the measure of an exterior angle and then they determining...
Curated OER
Angle Pairs
Eighth graders are introduced to the vocabulary associated with angles. They experiment with vertical angles, alternate interior angles, alternate exterior angles, and corresponding angles. They determine angle pair relationships when...
Curated OER
Quiz: Angles with Parallel Lines
Middle schoolers identify all pairs of angles formed from parallel lines and a transversal. They use the definitions of alternate interior, alternate exterior and corresponding angles to determine the value of given angles. This one-page...
Curated OER
Alternate Interior Angles
Label angles of parallel lines to analyze the angles created by a transversal and two parallel lines. They graph their lines and observe the similarity and difference in the angles.
Curated OER
Art Careers: Interior Decorator
Students redesign specific areas of their school using interior design techniques, magazine ideas, and cooperative learning groups in this middle and high school level lesson. Emphasis is on examining the career opportunities in interior...
Curated OER
The Earth's Interior
Eighth graders identify the layers of the Earth's interior, while learning to use WP utilities.
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