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In a series of practice problems, learners use the addition or subtraction method to solve systems of linear equations, also called "simultaneous linear equations."
Identifying the Number of Significant Digits
By Ron Wallberg
Learners will identify the number of significant digits in practice problems.
Standard-Position Angles and Reference Angles
By Kevin Ritzman
The learner will recognize standard-position angles and find the reference angle for any standard-position angle.
The Mathematics of Buying: Putting It All Together
By Mary Lee Rudnick-Kaun
Learners tackle this interactive learning object after studying the mathematics of buying. This activity ties together the ideas of net cost, list price, trade discounts, cash discounts, net cost equivalent, and single discount equivalent, as well as the concepts of part, base, and rate.
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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