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Activity
Shodor Education Foundation

Shodor Interactivate: Angles

For Students 9th - 10th Standards
This activity from Shodor Education Foundation will help you learn or review your angle vocabulary.
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Interactive
Sophia Learning

Sophia: Complementary and Supplementary Angles

For Students 9th - 10th Standards
Complementary and Supplementary angles are explored in this tutorial video. [9:17] A PowerPoint presentation provides definitions of angle terms and a video offers examples for finding the missing angle in a supplementary or...
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Unknown Type
Math Open Reference

Math Open Reference: Angle Quiz

For Students 6th - 8th Standards
Students are assessed on different types of angles. Definitions of the angles are included.
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Handout
Quia

Ixl Learning: Types of Angles

For Students 3rd - 5th Standards
Brush up on your math skills pertaining to types of angles then try some practice problems to test your understanding.
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Unit Plan
E-learning for Kids

E Learning for Kids: Math: Pizza (Italian) Restaurant: Angles I

For Students 5th - 6th
In this interactive website, students practice various math skills such as identifying different types of angles, use the degree symbol, estimate and measure angles, and construct angles.
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Unknown Type
Khan Academy

Khan Academy: Angle Types

For Students 4th Standards
Determine if an angle is acute, right, or obtuse. A protractor is provided.
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Lesson Plan
OER Commons

Oer Commons: Classifying Triangles

For Teachers 6th - 8th Standards
In this lesson, learners learn to classify triangles by the size of the angles and the measures of the sides. Students will use interactives to explore equilateral, isosceles, scalene, acute, obtuse, and right triangles. Included are...
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Handout
University of Georgia

University of Georgia: Inter Math: Exterior Angles

For Students 9th - 10th
Intermath Dictionary's site defines terms relating to angles, gives examples, and offers interactive exercises.
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Activity
Math.com

Math.com: Building Blocks: Classifying Angles

For Students 3rd - 8th Standards
This geometry resource investigates types of angles. Definitions, detailed examples, and practice problems are included.
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Website
Primary Resources

Primary Resources: Angles

For Teachers 3rd - 5th
A great place to find teacher resources on angles. Includes worksheets PowerPoint presentations and smartboard files.
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Unit Plan
CK-12 Foundation

Ck 12: Volume of Pyramids: Angle Exploration

For Students 4th - 8th Standards
[Free Registration/Login Required] Students explore classifying angles by navigating through the interactive learning module and then answering questions that go along with the module. Students can also learn more about the concept by...
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Professional Doc
Louisiana Department of Education

Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Angle Measure and Plane Figures

For Students 4th Standards
A guide to support parents as they work with their students in angle measure and plane figures.
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Unit Plan
E-learning for Kids

E Learning for Kids: Math: Singing Angels: Angles

For Students 4th - 5th Standards
Play an interactive game to determine the different types of angles.
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Activity
AAA Math

Aaa Math: Types of Triangles Based on Angles

For Students 3rd - 5th Standards
Students can practice classifying triangles based on angle measurements through a series of self-check exercises and timed learning games.
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Whiteboard
ClassFlow

Class Flow: Angles in Geometry

For Teachers 6th - 8th Standards
[Free Registration/Login Required] This flipchart is a look at angles in geometry. Drawing, labeling, measuring, special angles: (right, straight, acute, obtuse) and congruence.
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Unit Plan
Khan Academy

Khan Academy: Draw Right, Acute, and Obtuse Angles

For Students 3rd - 5th Standards
Create an acute, right, or obtuse angle using a given vertex. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Classifying Angles as Right, Acute, or Obtuse

For Students 3rd - 5th
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are presented with angles and must identify what type each is. An accompanying video demonstrates a sample problem. [2:10] A set of...
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Unknown Type
Khan Academy

Khan Academy: Draw Right, Acute, and Obtuse Angles

For Students 6th - 8th
Create an acute, right, or obtuse angle using a given vertex.
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Lesson Plan
PBS

Pbs Learning Media: Triangles: Targeted Math Instruction

For Students 9th - 10th Standards
Students will learn how to apply the properties and characteristics of all triangles to solve real-world problems and identify and use the unique characteristics of right, isosceles, equilateral, acute, obtuse, and scalene triangles.
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Counting Right Angles in a Diagram

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Practice counting the number of right angles in a diagram in this learning module. Includes video demonstration of a sample problem [2:11] and practice questions.
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Unknown Type
Khan Academy

Khan Academy: Recognize Angles

For Students 3rd - 5th Standards
Determine if angles in shapes and pictures are acute, right, or obtuse. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Unit Plan
Khan Academy

Khan Academy: Identify Triangles by Angles

For Students 3rd - 5th Standards
Practice identifying triangles by their angles as acute, right, or obtuse. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Activity
Analyze Math

Analyze Math: Angles in Geometry

For Students 9th - 10th Standards
Definitions and properties of angles in geometry are explored. Topics discussed are right, acute, and complementary angles. Practice exercises with solutions are included.
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Activity
Texas Instruments

Texas Instruments: Try Angle?

For Teachers 6th - 8th Standards
In this activity, students investigate properties of triangles by randomly generating possible side lengths for triangles. They learn to determine if three line segments can form a triangle. They also learn to classify triangles as...

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