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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Classify Objects as Rectangles, Squares, Circles, or Triangles

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on classifying rectangles, squares, circles and triangles.
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Determining the Unknown Angle in a Triangle

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on how to determine a missing angle in a triangle.
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Activity
Texas Instruments

Texas Instruments: Classifying a Triangles by Their Angle Measure Using Cabri Jr

For Teachers 9th - 10th
This activity uses Cabri Jr to classify triangles according to their angle measure. [Requires Adobe Reader.]
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Activity
Texas Instruments

Texas Instruments: Classifying Triangles by the Length of the Sides Using Cabri

For Teachers 9th - 10th Standards
This activity uses Cabri Jr. to classify triangles according to the length of their sides. [Requires Adobe Reader.]
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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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Unknown Type
Math Open Reference

Math Open Reference: Triangle Quiz

For Students 6th - 8th Standards
Students are assessed on different types of triangles. Definitions of the triangles are included.
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Unknown Type
McGraw Hill

Glencoe: Self Check Quizzes 2 Triangles

For Students 6th - 8th
Use Glencoe's Math Course 2 randomly generated self-checking quiz to test your knowledge of a variety of triangle topics. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page...
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Activity
Beacon Learning Center

Beacon Learning Center: Triangles Side by Side

For Students 3rd - 8th Standards
This comprehensive web lesson describes how to classify triangles by their angle and side measurements. It provides real-world examples and exercises for students to practice the skill.
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Classifying Right Obtuse or Acute by Angle Measure

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Students watch a video and attempt practice problems on how to classify triangles based on angle measures.
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Unit Plan
Scholastic

Scholastic: Study Jams! Math: Geometry: Classify Triangles

For Students 5th - 6th Standards
After completing the lesson on classifying triangles, you can sing along with karaoke and test your knowledge.
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Triangle Classification Grade 8

For Students 8th
[Free Registration/Login may be required to access all resource tools.] Classifying triangles by using angle measures and side lengths.
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Classify Objects as Rectangles, Squares, Circles, or Triangles

For Students 2nd - 4th Standards
[Free Registration/Login may be required to access all resource tools.] Students practice classifying various two dimensional shapes as rectangles, squares, circles or triangles.
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Triangle Classification Grades 8 10

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Classify triangles by side lengths and angle measures.
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Triangle Classification Grade 7

For Students 7th Standards
[Free Registration/Login may be required to access all resource tools.] Classify triangles by side lengths and angle measures.
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Triangle Classification Grades 9 10

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] This concept teaches students how to classify triangles based on their angles and sides.
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Triangle Classification by Side Lengths

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Classify different types of triangles by their side lengths.
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Determining the Length of an Unknown Side of a Triangle

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] Students watch a video tutorial and attempt practice problems on how to determine the unknown side length of a triangle.
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Unknown Type
Soft Schools

Soft Schools: Types of Triangles Quiz

For Students 9th - 10th Standards
The problems on this quiz give descriptions and properties of specific triangles. Students are expected to read the information and identify the triangle that is being described.
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Lesson Plan
OER Commons

Oer Commons: Classifying Triangles

For Teachers 6th - 8th Standards
In this lesson, students 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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Lesson Plan
Alabama Learning Exchange

Alex: A Triangle to Remember

For Teachers 4th Standards
This lesson will introduce students to different types of triangles by using a clip from the movie A Walk to Remember. They will take part in interactive tutorials to strengthen the concepts of classifying triangles. The students will...
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Activity
AAA Math

Aaa Math: Types of Triangles Based on Sides

For Students 3rd - 5th Standards
Students can practice classifying triangles based on side lengths through a series of self-check exercises and timed learning games.
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Unknown Type
Houghton Mifflin Harcourt

Holt, Rinehart and Winston: Homework Help Independent Practice: Triangles

For Students 6th - 8th Standards
Get independent practice working with triangles. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
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Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Classifying Triangles Within Composite Figures

For Students 3rd - 5th Standards
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are presented with a composite figure and must identify the types of triangles within it. An accompanying video demonstrates a...
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Triangle Classification by Angles

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Classify different types of triangles by their angles.

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