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Activity
Educaplus (Jesús Peñas Cano)

Educaplus: Medida De Angulos [In Spanish]

For Students 9th - 10th
Practice measuring angles with the protractor with this interactive activity.
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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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Handout
Homeschool Math

Homeschool Math: Parallel and Perpendicular Lines

For Students 6th - 8th
This lesson explains what are parallel and perpendicular lines and includes varied exercises and a video that shows how to draw a perpendicular line and a rectangle using a protractor or a triangular ruler.
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Handout
Smithsonian Institution

National Museum of American History: Slates, Slide Rules and Software

For Students 9th - 10th
Did you learn to calculate using a 7-foot-long slide rule? Did you learn about the properties of numbers using brightly colored Cuisenaire rods? Ever wonder who invented the graph paper you used in geometry class? Go back to the...
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Interactive
Math Playground

Math Playground: Measuring Angles

For Students 4th - 6th Standards
Practice measuring angles by manipulating a protractor.
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Activity
Beacon Learning Center

Beacon Learning Center: Anglemania!

For Students 3rd - 5th Standards
Students explore four types of angles in this interactive web lesson.
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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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Interactive
Mangahigh

Mangahigh: Shape: Construct Triangles

For Students 9th - 10th Standards
Test your knowledge of using a protractor to construct triangles.
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Unit Plan
Khan Academy

Khan Academy: Draw Angles

For Students 3rd - 5th Standards
Use a protractor to construct angles. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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Lesson Plan
OER Commons

Oer Commons: Characteristics of Parallelograms

For Teachers 6th - 8th
In this instructional activity, students learn more about the characteristics of parallelograms by folding paper and measuring the angles in a parallelogram. Students use a ruler and protractor to draw parallelograms with given...
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Interactive
Other

The Math Learning Center: Pattern Shapes

For Students 4th - 8th Standards
Students use pattern shapes to explore geometry and fractions, creating their own designs, or filling in outlines. As they work with the shapes students explore geometric relationships, think about angles, investigate symmetry, and...
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Unit Plan
E-learning for Kids

E Learning for Kids: Math: Riksjas, Toek Toek: Angles

For Students 4th - 5th Standards
Students will play interactive games to identify types of angles and measure the angles.
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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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Unknown Type
Mr. Martini's Classroom

Mr. Martini's Classroom: Geometry Special Angle Pairs and Parallel Transversals

For Students 3rd - 8th Standards
Students are challenged to identify and measure angles created by parallel lines and a transversal as well as complementary and supplementary pairs.
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Handout
Purple Math

Purplemath: Greek Letters and Their Names

For Students 9th - 10th Standards
When you are working with geometry and trigonometry, you will see a lot of Greek letters. It will be helpful to know how the names of these letters are spelled and pronounced.
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Whiteboard
ClassFlow

Class Flow: Angle Measurement

For Teachers 9th - 10th Standards
[Free Registration/Login Required] This flipchart uses the protractor tool to understand the classification and naming of angles: acute, obtuse and right.
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Whiteboard
ClassFlow

Class Flow: Introducing Angles

For Teachers 9th - 10th Standards
[Free Registration/Login Required] Students learn the difference between obtuse, acute and reflex angles and then use the protractor to measure various angles.
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Activity
Fundación Cientec

Cientec: Herramienta Triangular Para Medir Ingulos:transportador

For Students 9th - 10th Standards
How to measure angles by using a piece of a square paper. Step by step instructions are provided.
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Whiteboard
ClassFlow

Class Flow: Area Flash Cards

For Teachers 6th - 8th
[Free Registration/Login Required] This flipchart identifies student's prior knowledge of different shapes and their area by using flash cards. This lesson was intended for grade level 6-8 or lower. A quick warm-up as you launch into...
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Whiteboard
ClassFlow

Class Flow: Complementary Angles

For Teachers 9th - 10th Standards
[Free Registration/Login Required] Using a variety of Activstudio tools, students investigate complementary and supplementary angles.
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Activity
Disfruta Las Matematicas

Disfruta Las Matematicas: Geometria

For Students 4th - 6th Standards
This unit could be used as supplementary material for Geometry. It has good examples with illustrations and some interactive activities.
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Activity
TeachEngineering

Teach Engineering: Topo Triangulation

For Teachers 6th - 8th
In this activity, students will learn how to read a topographical map and how to triangulate with just a map. True triangulation requires both a map and compass, but to simplify the activity and make it possible indoors, the compass...
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Lesson Plan
University of Texas at Austin

The University of Texas Mc Donald Observatory: Delta, Delta, Delta

For Teachers 6th - 8th
Middle schoolers learn abouT the Law of Reflection by constructing an equilateral triangle using graph paper, pencil, protractor, and a ruler and a "laser triangle" using a laser pointer and front-silvered mirrors.
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Unknown Type
Soft Schools

Soft Schools: Measurement Quiz

For Students 9th - 10th
This online quiz is multiple choice and consists of ten questions, some of which are word problems. The quiz concentrates on unit measurements and conversions, abbreviations, and angle measurements with the use of a protractor, and a...

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