How do computers sort data lists? Using eight unknown weights and a balance scale, groups determine the order of the weights from lightest to heaviest. A second instructional activity provides the groups with other methods to order the...

Round and round they go ... where they stop, only scholars will know. By writing systems of equations, classes determine the number of cars a roundabout can handle given specific constraints. Systems use up to six variables and become...

In this activity, students make use of a visual representation for dividing fractions. They also discover the numerical algorithm used to divide fractions.