First graders use rulers to measure in both standard notation and centimeters. In this measuring lesson, 1st graders discuss the importance of a measuring standard. Students measure in inches and centimeters. Students compare inches to...

The definition of square can determine whether it is a special case of a rectangle. Using the Cabri Jr. application, students can get a feel for why its definition makes sense. Along the way, they get experience with perpendiculars,...

The definition of isosceles triangle can determine whether an equilateral triangle is a special case of an isosceles triangle. Using the Cabri Jr. application, students can get a feel for which definition makes the most sense. Along the...

A huge collection of teacher resources to aide in the teaching of all types of metric measurement: length, distance, mass, weight, capacity, and volume. Activities include measuring, estimating, converting, investigating, and finding...

In this exercise, students practice measuring lengths 2. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

Students use their height and the length of the shadow to determine the height of buildings. A great outdoor activity to learn about proportions and ratios.