Learning Objects Authored

• Fundamental Laws of Algebra

  By Allen Reed, Douglas Jensen

  Learners review the fundamental laws of algebra including the commutative law of addition, the commutative law of multiplication, the associative law of addition, the associative law of multiplication, and the distributive law. Examples are given.

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• 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.

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  5,299

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• Ratios and Proportions

  By Allen Reed, Douglas Jensen

  In this interactive object, learners simplify ratios and solve problems using proportions. All terms are defined.

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  39.7k

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• Ratios and Proportions

  By Allen Reed, Douglas Jensen

  In this interactive object, learners simplify ratios and solve problems using proportions. All terms are defined.

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  1,828

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• 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.

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• 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.

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  512

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• Simplifying Algebraic Expressions: Division

  By Allen Reed, Douglas Jensen

  Learners read definitions of the terminology associated with algebraic operations and then follow steps to use the fundamental laws of division to simplify algebraic expressions.

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  16.6k

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• Simplifying Algebraic Expressions: Multiplication

  By Allen Reed, Douglas Jensen

  Learners read definitions of the terminology associated with algebraic operations and then follow steps to use the fundamental laws of multiplication to simplify algebraic expressions.

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  7,474

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• Solving Equations: Properties of Equality

  By Allen Reed, Douglas Jensen

  In this interactive object, learners examine the properties of equality and use those properties to solve simple equations.

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  20.9k

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• Solving Systems of Linear Equations Using the Addition or Subtraction Method

  By Allen Reed, Douglas Jensen

  In a series of practice problems, learners use the addition or subtraction method to solve systems of linear equations, also called "simultaneous linear equations."

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  9,856

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• Solving Systems of Linear Equations Using the Addition or Subtraction Method (Screencast)

  By Allen Reed, Douglas Jensen

  In a series of practice problems, learners use the addition or subtraction method to solve systems of linear equations, also called "simultaneous linear equations."

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• Solving Systems of Linear Equations Using the Substitution Method

  By Allen Reed, Douglas Jensen

  In a series of practice problems, learners use the substitution method to solve systems of linear equations, also called "simultaneous linear equations."

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  11.3k

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• Solving Systems of Linear Equations Using the Substitution Method

  By Allen Reed, Douglas Jensen

  In a series of practice problems, learners use the substitution method to solve systems of linear equations, also called "simultaneous linear equations."

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  390

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• The Circle

  By Douglas Jensen

  In this animated and interactive object, learners examine the definitions and formulas for radius, diameter, circumference, and area. Students also solve practice problems involving the circumference and area of a circle.

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  8,558

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• The Cube

  By Allen Reed, Douglas Jensen

  Learners study the properties of a cube and use geometric formulas to find volume and surface area.

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  3,820

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• The Parallelogram

  By Allen Reed, Douglas Jensen

  In this animated activity, learners read the definition of a parallelogram and then find the perimeter and area of parallelograms in practice problems.

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  3,586

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• The Rectangle

  By Allen Reed, Douglas Jensen

  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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  3,563

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• The Rectangular Solid

  By Allen Reed, Douglas Jensen

  Learners study the properties of a rectangular solid and use geometric formulas to find volume and surface area.

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  7,705

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• The Regular Square Pyramid

  By Allen Reed, Douglas Jensen

  Learners study the properties of a regular square pyramid and use geometric formulas to find volume and surface area.

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• The Right Circular Cone

  By Allen Reed, Douglas Jensen

  Learners study the properties of a right circular cone and use geometric formulas to find volume and surface area.

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• The Right Circular Cylinder

  By Allen Reed, Douglas Jensen

  Learners study the properties of a right circular cylinder and use geometric formulas to find volume and surface area.

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  5,864

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• The Sphere

  By Allen Reed, Douglas Jensen

  Learners study the properties of a sphere and use geometric formulas to find volume and surface area.

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  151

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• The Square

  By Allen Reed, Douglas Jensen

  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.

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  3,290

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• The Trapezoid

  By Allen Reed, Douglas Jensen

  In this interactive object, learners study the properties of a trapezoid and use a geometric formula to find its perimeter and area.

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• The Triangle

  By Allen Reed, Douglas Jensen

  Learners examine the properties of a triangle and work practice problems to find a triangle's perimeter and area.

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  152

  4,018

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