Five questions—multiple-choice, fill in the blank, and discussion—make up an interactive that challenges scholars to mail a teddy bear using the smallest box possible without squishing it. A box with movable sides allows mathematicians...

Learners of all ages investigate area and perimeter through pentominoes. In this geometry lesson, young scholars calculate the are and perimeter of different geometric shapes and describe the properties of similar and congruent shapes....

Learners identify the effect the change of dimensions causes for the volume and surface area. In this geometry activity, students compare perimeter, area and volume as they play around with the dimensions of the polygons. They...

Investigate perimeter and area of polygons! In this measurement activity, learners use index cards to create rectangles and trace their hand to estimate its area and perimeter.