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Lesson Plan
Curated OER

Colors: Primary and Secondary

For Teachers K - 1st
Students explore primary and secondary colors. In this lesson on light and color, students complete four different activities which include mixing colors, creating secondary colors from primary colors and observing the colors in a bubble.
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Worksheet
Curated OER

Estimate and Measure Angles

For Students 5th - 6th
In this angle worksheet, students estimate a set of angles within 15 degrees, then measure each angle and name it. A reference web site is given for additional activities.
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Worksheet
Curated OER

Estimate, Name and Measure Angles

For Students 4th - 6th
In this angles worksheet, students first estimate then measure and name a set of 3 given angles. A reference web site is given for additional activities.
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Worksheet
Curated OER

Estimating, Measuring and Naming Angles

For Students 5th - 6th
In this angle learning exercise, students first estimate, then measure within 15 degrees and name a set of 3 angles. A reference web site is given for additional activities.
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Using a Protractor

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] In this learning module, students use a protractor correctly to measure angles. The proper technique for using a protractor is demonstrated in the accompanying...
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Handout
Science Struck

Science Struck: How to Use a Protractor to Measure and Draw Angles

For Students 4th - 8th Standards
Step-by-step instructions accompanied by illustrations that demonstrate how to use a protractor to draw angles and to measure angles.
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Activity
Math Is Fun

Math Is Fun: Using a Protractor

For Students 9th - 10th
Students learn how to construct and measure angles using a protractor and ruler. The resource consists of a video demonstration and exploration activity.
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Website
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Using a Protractor

For Students 9th - 10th Standards
Q and A Math Forum site that answers the question of "How do I measure angles using a protractor?"
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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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Unit Plan
Sophia Learning

Sophia: Measuring Angles With a Protractor

For Students 9th - 10th Standards
Students learn how to measure angles with a protractor. Detailed examples are included in the video lesson.
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Activity
Science Buddies

Science Buddies: Using Laser Pointer to Measure Data Track Spacing on C Ds, Dv Ds

For Students 9th - 10th
You've probably noticed the colorful patterns "reflecting" from the shiny surface of a CD disk. What you are seeing is actually diffraction of white light, and the rainbows of color are diffraction patterns. In this project you'll learn...
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Unit Plan
Khan Academy

Khan Academy: Measure Angles

For Students 3rd - 5th
Measure angles using a protractor. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Whiteboard
ClassFlow

Class Flow: Angles Protractor

For Teachers 3rd - 8th Standards
[Free Registration/Login Required] This flipchart uses the interactive protractor to measure various angles.
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Activity
Homeschool Math

Homeschool Math: Measuring Angles With a Protractor

For Students 3rd - 5th
This geometry lesson and video explain angle measure, how to measure angles with a protractor, and has varied exercises for the students.
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Activity
Science Buddies

Science Buddies: Using a Laser to Measure the Speed of Light in Jello

For Students 9th - 10th
Think it takes expensive, sophisticated equipment to measure the speed of light? Think again. Outfit yourself with a simple handheld laser pointer, a protractor, and Jell-O, and you're ready to get started.
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Handout
Math Planet

Math Planet: Geometry: Measure and Classify an Angle

For Students 4th - 5th Standards
Explains the terms and symbols used to discuss line angles, what an angle is, and the types of angles. Includes short video lesson demonstrating how to use a protractor to measure an angle. [0:57]
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Lesson Plan
PBS

Pbs: Black Kingdoms of the Nile

For Teachers 9th - 10th
A geometry lesson that examines the history and structure of ancient pyramids and engages students in constructing pyramid models. A comprehensive lesson that considers students with diverse learning styles. Math concepts introduced...
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Angle Measurement Grades 8 10

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Find angle measures using a protractor and the Angle Addition Postulate.
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Angle Measurement Grade 6

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Learn how to use a protractor to draw angles.
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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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Interactive
Educaplus (Jesús Peñas Cano)

Educaplus: Medida De Angulos

For Students 4th - 8th Standards
In this simulation use a protractor to measure different angles. A score will be given along with the percentage of error.
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Handout
Science Struck

Science Struck: Devices Used to Measure Angles

For Students 9th - 10th Standards
Looks at the many devices used to measure angles in academic settings and in real-world settings.
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Lesson Plan
Science and Mathematics Initiative for Learning Enhancement (SMILE)

Smile: Geometry Distance of Triangles Using a Protractor

For Teachers 5th - 9th Standards
Basic exercises are presented to help students understand the concept of the area of triangles and the angles of a triangle.
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Handout
Khan Academy

Khan Academy: Review: Measuring Angles Review

For Students 4th
Demonstrates how to use an interactive protractor to measure angle size. Includes three practice questions and explanations of their solutions.

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