Geometry Library

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...

Students define geometry terms. They use geometry to explore the relationship of objects in and around the school. Pupils find examples of specific geometry terms in the classroom, as well as in other parts of the school. Students...

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...

Learn how to measure acute, right, and obtuse angles with a protractor. After reviewing the way the protractor works, fourth graders measure nine angles on their own. For extra practice, have them measure different angles in their...

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...

Young scholars create a mini city using proportions that fit a model human they construct using tin foil. They plan the city including a library, sports arena, living spaces, parks and businesses. When constructing the paper buildings,...

Students examine the concepts of geometry used by Paul Goble in his book Adopted By The Eagles. After analyzing Mr. Goble's work they create an original piece featuring symmetry, pattern, repetition, and other principles of geometry....

Students explore geometry and patterns by viewing photographs. In this quilting lesson, students analyze photographs of quilt patterns in a PowerPoint slide-show presentation. Students identify the different patterns within the quilts...

Learners read The Greedy Triangle and discuss geometric solids. In this geometry instructional activity, students list the geo-solids in the world and create a graphic organizer to show where geo-solids exist.

Students explore the subject of geometry using the Internet. They create their own list of terms with definitions from information they found on sites. They participate in interactive Internet sites that are listed on this lesson and...