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Printables
Ed Galaxy

Amazing Angles

For Teachers 4th - 9th Standards
Three letter-sized mini posters can be displayed in your elementary geometry class when teaching about angles. One provides information about degree measurement and additive properties, and the other two define acute, right, obtuse,...
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Lesson Plan
Curated OER

Angles, Bearings and Maps

For Teachers 6th - 8th
Students review what they comprehend about angles. They name the differnt types of angles and define them. Students use their protractors to answer questions, the teacher walks around to look at the positioning of the protractors. ...
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Handout
Math Open Reference

Math Open Reference: Angles

For Students 9th - 10th Standards
Everything you wanted to know about angles and more, including 1) how to measure angles 2) types of angles 3) angle relationships and 4) angles around a transversal.
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Handout
Cuemath

Cuemath: Angles

For Students 9th - 10th Standards
A comprehensive guide for learning all about angles with definitions, examples, and practice questions.
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Handout
Wolfram Research

Wolfram Math World: Cut the Knot! Angles

For Students 9th - 10th Standards
Very good site with links to reviews of various angles.
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Activity
Math Is Fun

Math Is Fun: Angles

For Students 9th - 10th Standards
Definitions of different types of angles along with images and an interactive tool through which you can create acute, right, straight, obtuse, and reflex angles. View the parts of an angle, and learn the proper way to label angles.
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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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Activity
BBC

Bbc: Bitesize: Math: Angles

For Students 9th - 10th Standards
What is an angle? Read about and see examples of the three different types while learning how to use a protractor. Links to an online game and an interactive quiz.
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Handout
University of Georgia

University of Georgia: Inter Math: Protractor

For Students 6th - 8th
This site gives a description of a protractor. This site has several very useful links, be sure to check out the more information link to practice using a protractor on line. There are numerous challenging problems available through the...
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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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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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Activity
Math Is Fun

Math Is Fun: Reflex Angle

For Students 3rd - 8th Standards
This math tutorial provides an illustrated explanation of a reflex angle.