Your geometry learners will discover and show the construction of the circumcenter of a triangle. Guided by the steps in the activity, they construct perpendicular bisectors of each side that have a point of concurrency called the...

Here is a lesson on coordinates that has pupils view three Cyberchase video clips illustrating the definition of "point" and "line." Along the way, learners will discuss what characters from the videos do, and where problems lie in...

Students investigate the elements of a pattern.  In this geometry lesson, students identify different shapes in a pattern and discover which shapes are missing in order to extend it.  Students create their own patterns using...

First graders explore 2-dimensional and 3-dimensional shapes. In this geometry lesson, 1st graders examine the attributes of 2 -dimensional and 3-dimensional shapes. They also create the shapes as they build models. This lesson...

First graders combine different shapes to create an image.  For this geometry lesson, 1st graders utilize squares, circles, rectangles, triangles, and arc to draw a picture.  Students share their creation with their class...

Fifth graders complete activities to investigate parallel and perpendicular lines. In this plane geometry activity, 5th graders watch a movie about parallel and perpendicular lines. Students work in pairs to describe and draw the lines...