In this multi-day activity, 3rd graders make 3 different models of an orphanage floor plan using Google Drawing, Virtual Graph paper, and a construction of rectilinear shapes, to calculate the area of each room using units square.

Online drawing programs allow students to explore many possibilities with polygons!

Connect new measurement knowledge and skills to the students' immediate environment.

The children have been practicing decomposing areas and now digits in order to understand and use the distributive property.

Children need to move from the manipulative expressions of the distributive property into the mathematical equations eventually. This lesson is the first step in leading them to that goal.

Differences between shapes are determined through measurement skills.

This lesson is a real world task that combines many skills the students have learned throughout the school year.

Third graders will use the bat houses we built as examples of various quadrilaterals.

In this video segment [2:01] from Cyberchase, the CyberSquad finds that by arranging triangle tiles they are able to create a path that will allow them to cross a river of hot lava.

In this Cyberchase video segment, Harry tries to snowboard and learns how to measure and identify many common angles.

In this video segment from Cyberchase, two friends make rock candy while learning about 2-D and 3-D shapes.

Four different games are featured to practice geometry terms.

[Free Registration/Login Required] This flipchart is a lesson on the parts of a circle.

[Free Registration/Login Required] This flipchart introduces students to the different types of lines and how to classify them.

In this exercise, students practice classifying shapes by line and angle types. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

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

In this exercise, students find a missing side length when given area of a rectangle. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

In this exercise, students practice finding area by multiplying. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

In this exercise, students practice applying the properties of shapes. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

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

In this exercise, students practice figuring volume with unit cubes. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

Draw rays, lines, and line segments with given points. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

In this exercise, students practice recognizing triangle types. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.

Create an acute, right, or obtuse angle using a given vertex. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.