Sophia Learning
Sophia: Pythagorean Theorem Proof
Find the area of several figures to prove the Pythagorean theorem. Complete quiz to check understanding. [5:16]
Sophia Learning
Sophia: Practice With Rotations
Explore how to rotate a geometric object across a coordinate plane with this video lesson. [10:37] Assess learning with a quiz.
Khan Academy
Khan Academy: Linear Transformation Examples: Unit Vectors
What unit vectors are and how to construct them.
Sophia Learning
Sophia: Demonstrating Similarity
Different shapes are used to explore and define similarity. Assess learning with a quiz.
Sophia Learning
Sophia: Nets
In this video tutorial, students will explore several different shapes and the nets that make them. Quiz to follow the lesson. [3:12]
Imagine Learning Classroom
Learn Zillion: Prove Two Figures Are Similar After a Dilation
In this lesson, you will learn how to determine if two figures are similar by using dilations and scale factors. [5:23]
Mucho Math
Algebra2go: Finding Perimeter of Rectangular Shapes
This video requires students to find missing side lengths of rectangular shapes prior to finding the perimeter.
Khan Academy
Khan Academy: Volume: Volume of a Sphere
This video lesson explains how to calculate the volume of a sphere. [2:34]
Khan Academy
Khan Academy: Unit Conversion: Perimeter and Unit Conversion
Students learn to solve perimeter problems that involve converting units within the same measurement system.
Khan Academy
Khan Academy: Triangle Angle Properties: Sum of Interior Angles of a Polygon
Students explore the interior angles of a polygon by explanding on the concept that a triangle has 180 degrees and developing a formula for all polygons.
Khan Academy
Khan Academy: Triangles: Area of Inscribed Equilateral Triangle
Students explore a problem that requires then to figure out the area of an equilateral triangle inscribed in a circle using a little trigonometry.
Khan Academy
Khan Academy: Triangles: Circumcenter of a Right Triangle
The video tutorial shows that the midpoint of the hypotenuse is the circumcenter.
Khan Academy
Khan Academy: Triangle Angle Properties: Sum of the Exterior Angles of Polygon
Students explore a more elegant way to find the sum of the exterior angles of a convex polygon.
National Science Foundation
National Science Foundation: Science of Nfl Football: Geometric Shapes
NBC's Lester Holt explores the prolate spheroid, the three-dimensional shape of a football, and how it helps an NFL quarterback throw a hard, accurate pass. [4:09]
CK-12 Foundation
Ck 12: Elem Math: Overview of Basic 3 D Figures
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on the properties of basic three dimensional figures.
CK-12 Foundation
Ck 12: Elem Math: Overview of Quadrilaterals
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on the properties of various quadrilaterals.
Art of Problem Solving
Art of Problem Solving: Length and Perimeter
Video tutorial uses examples to reinforce understanding of length and perimeter. [7:58]
Loyola University Chicago
Math Flix: Pythagorean Theorem Puzzle
This QuickTime movie uses a tangram-like puzzle to help understand the Pythagorean Theorem. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept.
CK-12 Foundation
Ck 12: Elem Math: Overview of Area of Squares and Rectangles Word Problems
[Free Registration/Login may be required to access all resource tools.] Students watch a video overview on how to find the area of a square and rectangle.
Study Pug
Study Pug: Coterminal Angles
Video lesson explores coterminal angles which are angles that share the same terminal arms. [17:06]
Khan Academy
Khan Academy: Kant: On Space, Part 1
What is space? Kant's answer is a head-scratcher: space is merely a form of intuition. Scott Edgar explains this rather perplexing answer in accessible, every-day language. [7:12]
Khan Academy
Khan Academy: Measuring Angles in Degrees
Learn how to measure an angle with a protractor.
Khan Academy
Khan Academy: Measuring Angles Using a Protractor 2
Sal measures several angles with a protractor.
Khan Academy
Khan Academy: Measuring Angles Using a Protractor
Learn to use a virtual protractor to measure angles.
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