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Learners study the properties of a sphere and use geometric formulas to find volume and surface area.
Strength of Materials: The Centroid of a Triangle
By Steve Whitmoyer
In this animated and interactive object, learners calculate the area and centroid of a triangle.
Simplifying Algebraic Expressions: Addition & Subtraction
By Allen Reed, Douglas Jensen
Learners read definitions of the terminology associated with algebraic operations and then follow steps to simplify algebraic expressions.
International Time Zones (Video)
By Virginia Kirsch
In this screencast, you will learn about the 24 time zones.
In this animated activity, learners read about the properties of a rectangle and its components. They then work practice problems to find the perimeter and area of rectangles.
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