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In this animated activity, learners read about the properties of a square and its components. They then work practice problems to find the perimeter and area of squares.
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.
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.
Solving Systems of Linear Equations Using the Addition or Subtraction Method
In a series of practice problems, learners use the addition or subtraction method to solve systems of linear equations, also called "simultaneous linear equations."
Simplifying Algebraic Expressions: Addition & Subtraction
Learners read definitions of the terminology associated with algebraic operations and then follow steps to simplify algebraic expressions.
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