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Whiteboard
ClassFlow

Class Flow: Angles in Geometry

For Teachers 6th - 8th Standards
[Free Registration/Login Required] This flipchart is a look at angles in geometry. Drawing, labeling, measuring, special angles: (right, straight, acute, obtuse) and congruence.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Srt Bank Shot

For Teachers 9th - 10th Standards
This task asks students to use similarity to solve a pool table problem. Students must use the fact from physics that when an object bounces off of a wall, the angle of incidence equals the angle of reflection. Aligns with G-SRT.B.5.
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Srt Joining Two Midpoints of Sides of a Triangle

For Teachers 9th - 10th Standards
In this task, young scholars must prove that angles and triangles are congruent and that a parallel line passes through the midpoints of two sides of the larger triangle. Aligns with G-SRT.B.4.
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PPT
Sophia Learning

Sophia: Corresponding Parts: Lesson 5

For Students 9th - 10th Standards
This lesson will define the phrase corresponding parts (e.g. angles, sides, etc.). It is 5 of 5 in the series titled "Corresponding Parts."
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Lesson Plan
Alabama Learning Exchange

Alex: Tan Ii

For Teachers K - 1st Standards
The Chinese character mark for Tan II (pronounced she-tow-bah) is the second of two lessons to introduce first grade young scholars to geometry using tangrams. This lesson plan incorporates history, math, and language arts. In this...
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Article
Mocomi & Anibrain Digital Technologies

Mocomi: Types of Triangles

For Students 2nd - 8th Standards
Explore the different types of triangles and other properties.
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Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Math Challenges for Families

For Students 2nd - 8th
Students, teachers, and parents alike will enjoy this challenging math site. It contains a clever brain teaser section plus creative problems related to algebra, geometry, measurement, numbers, statistics, and probability. A Spanish...