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Learners study the properties of a rectangular solid and use geometric formulas to find volume and surface area.
Operations with Zero
By Allen Reed, Douglas Jensen
Learners review the basic math operations involving zero, emphasizing that division by zero is undefined. Examples are given.
International Time Zones (Video)
By Virginia Kirsch
In this screencast, you will learn about the 24 time zones.
In this interactive object, learners study the properties of a trapezoid and use a geometric formula to find its perimeter and area.
Solving Equations: Properties of Equality
In this interactive object, learners examine the properties of equality and use those properties to solve simple equations.
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