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In this interactive object, learners study the properties of a trapezoid and use a geometric formula to find its perimeter and 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.
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.
Strength of Materials: The Centroid of a Circle
In this animated and interactive object, learners calculate the area and centroid of a circle.
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.
Creative Commons Attribution-NonCommercial 4.0 International License.
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