Discovering Perimeters

There's a reason this worksheet is done in groups! Tricky word problems give geometry scholars a challenge as they use prior knowledge about shapes to find the area and perimeter given a few measurements. Students will enjoy discovering...

Young mathematicians explore the concept of maximizing area and minimizing perimeter in this TI-Nspire instructional activity. This instructional activity is broken up into two parts. In the first, one tries to maximize the area while...

Are all the measurements scalable? Pupils work in groups or alone to determine whether figures are similar and find any missing side lengths. Then, they calculate the perimeters and areas of the figures. Finally, using the measurements,...

Students explore pi. In this circle measurement lesson, students define and identify radius, diameter, circumference, and perimeter. Students work in groups to measure several plastic lids and record their findings. Students compare the...

Twelfth graders apply perimeter measurement to items found in newspapers and calculate the cost in terms of feet or yards. They share answers and explanations with classmates.

Learners determine how to find the perimeter of a rectangle. In this perimeter lesson, students make rectangles of given sizes using a 20" string. They record the the length, width, and perimeter of each rectangle. They discover the...

Discover how to find the algebraic formula for the perimeter of a rectangle through this tutorial. Your algebra learners will be guided towards the thinking steps around this concept. After showing the video, invite your class to model...

Students discover and apply the formula for the area and perimeter of rectangles and squares. They draw the shapes on graph paper and create tables that include their information.

Consider the relationship between side length and area as an input-output function. Scholars create input-output tables for the area of squares to determine an equation in the first installment of a three-part unit. Ditto for the area of...

Would you like pi with that? An engaging lesson builds from the previous installment in the series to create a method for calculating the digits of pi. Pupils work improves on the method discovered by Archimedes.