Geometry Library

Take young mathematicians' understanding of geometry into the real world with this upper-elementary math lesson. Given the floor plans of a historic building in Tennessee, students are asked to calculate its area and perimeter as...

Building on young mathematicians' prior knowledge of three-sided shapes, this lesson series explores the defining characteristics of different types of triangles. Starting with a shared reading of the children's book The Greedy Triangle,...

Which shapes are symmetrical? Third graders decide which shapes have lines of symmetry, and which shapes are not symmetrical. They work on 13 shapes and symbols, four of which have lines already drawn through them. Use this resource to...

Evaluate young mathematicians' understanding of area and perimeter with this series of three assessment tasks. Challenging students to not only calculate the area and perimeter of irregular shapes, but to explain in writing their...

Congratulations, you've just hit the word problem jackpot! Covering an incredible range of topics from integers and fractions, to percents, geometry, and much more, this collection of worksheets will keep young mathematicians busy...

Leave no student behind with this differentiated geometry unit on perimeter and area. Over the course of five lessons, young mathematicians explore these foundational concepts through a series of self-selected hands-on activities and...

Students create a quilt square for a class quilt using at least three, two-dimensional geometric figures. They research and write a brief description of at least two different quilt patterns that they find. Pupils discuss that quilts are...

The hunt is on! Young mathematicians follow clues and complete a series of ten math puzzles as they try to crack Dr. Integer's code and find the location of his hidden treasure.

Consider how to plot the positive and negative numbers in the four quadrants of a coordinate plane. The lesson is scaffolded through teacher modeling before moving into creating their own labeled grid and drawing geometric shapes. A...

Learn math in an outdoor environment using this resource. Learners identify the shapes and sizes of geometric objects in a natural environment. They estimate and compare the height of two trees, take pictures of geometric shapes and...