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Acute, Right, and Obtuse Angles
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Explains the properties of acute, right, and obtuse angles. [5:33]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Subject:
Mathematics
Material Type:
Audio/Video
Lesson
Provider:
Khan Academy
Date Added:
11/14/2023
Algebra 2: Angles
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Features a definition, examples, and a video lesson all related to angles. [0:35]

Subject:
Mathematics
Material Type:
Lesson
Provider:
Mathplanet
Provider Set:
Algebra 2
Date Added:
10/01/2022
Algebra 2: Cosines
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Defines and explores the law of cosines through examples and a video lesson. [1:41]

Subject:
Mathematics
Material Type:
Lesson
Provider:
Mathplanet
Provider Set:
Algebra 2
Date Added:
10/01/2022
Algebra 2: Sines
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Defines and examines the law of sines through examples and a video lesson. [2:02]

Subject:
Mathematics
Material Type:
Lesson
Provider:
Mathplanet
Provider Set:
Algebra 2
Date Added:
10/01/2022
Angles Formed by Intersecting Chords, Secants, and Tangents
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In this activity, students will investigate properties of angles and arcs formed when chords, secants, and tangents intersect and intercept arcs in a circle. They discover several important theorems concerning circles and arc sizes. They make use of the Central Angle theorem, which ensures that the measure of a central angle of a circle is equal to the measure of its intercepted arc.

Subject:
Mathematics
Material Type:
Lesson Plan
Provider:
Texas Instruments
Date Added:
08/07/2023
Angles, Parallel Lines, & Transversals
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CC BY-NC-SA
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Looks at parallel lines and intersecting lines (transversals), and the angles they form. [7:08]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Subject:
Mathematics
Material Type:
Audio/Video
Lesson
Provider:
Khan Academy
Date Added:
11/14/2023
ArtsNow Learning: Performing Perimeter [PDF]
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In this lesson, students calculate the perimeter of various geometric shapes and represent the perimeter with a movement phrase. They will identify the types of angles within each shape. Other students will identify the shape that was demonstrated.

Subject:
Arts
Material Type:
Lesson Plan
Provider:
ArtsNow
Date Added:
10/01/2022
BetterLesson: Introduction to Angles
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See this lesson to help students to learn about angles and identify the number of angles in 2D shapes. Lesson plans includes introductory activity, guided practice, and independent practice.

Subject:
Mathematics
Material Type:
Lesson Plan
Provider:
BetterLesson
Date Added:
12/01/2022
CK-12 Foundation and Leadership Public Schools, College Access Reader: Geometry
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CC BY-NC-SA
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This book is a "flexed" version of CK-12's Basic Geometry that aligns with College Access Geometry and contains embedded literacy supports. It covers the essentials of geometry for the high school student.

Subject:
Geometry
Mathematics
Material Type:
Textbook
Provider:
CK-12 Foundation
Provider Set:
CK-12 FlexBook
Author:
Fauteux, Michael
Zapata, Rosamaria
Date Added:
05/18/2011
CK-12 Texas Instruments Geometry Student Edition
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CC BY-NC-SA
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CK-12 Foundation's Geometry FlexBook is a clear presentation of the essentials of geometry for the high school student. Topics include: Proof, Congruent Triangles, Quadrilaterals, Similarity, Perimeter & Area, Volume, and Transformations.

Subject:
Geometry
Mathematics
Material Type:
Textbook
Provider:
CK-12 Foundation
Provider Set:
CK-12 FlexBook
Date Added:
10/06/2009
Classifying Shapes by Lines and Angles
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CC BY-NC-SA
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Demonstrates how to find what 2D shape matches a set of properties. [3:37]

Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.

Subject:
Mathematics
Material Type:
Audio/Video
Lesson
Provider:
Khan Academy
Date Added:
11/14/2023