Polygons and Plane Figures

What is the typical length of a yellow perch? Pupils analyze a histogram of lengths for a sample of yellow perch from the Great Lakes. They determine which measures of center and variability are best to use based upon the shape of the...

If you're teaching 3rd or 4th grade math, this presentation is a must have. It defines perimeter and polygons, then describes the process by which perimeter is determined through pair share discussion and critical thinking questions....

A straight edge, a right angle, a number of vertices; sounds like it's time to classify polygons. That's right you and your class will learn all about the properties of polygons and how to classify them with this easy to follow...

What shapes classify as a polygon? The resource provides the definition of a polygon and provides examples of polygons and shapes that are not polygons. The presentation gives an explanation of why each shape falls into the particular...

Help learners practice their math skills by utilizing the Internet to research a mathematical topic. Your math sleuths will investigate a science or social studies topic from their curriculum and construct a Math Hunt Grid. They create a...

Break down interior and exterior angles with this video. Using a pentagon, a teacher demonstrates how to find the interior and exterior angles of a polygon. She goes on to explain a few of the properties of these angles, writing down all...

How many ways can you think of to display data? A quick video lesson describes the process of creating one of them, a line graph, which is also referred to as a frequency polygon. After creating the graph, the instructor models how to...

What caused that to happen? Using three aspects, a video demonstrates how to describe an enlargement or dilation. The presenter counts the lengths of the sides to determine the scale factor and a ruler to find the center of dilation.

Is there advanced life beyond Earth? Perhaps, but there's definitely advanced math in the universe. A real-life astrobiologist explains how she uses math in her job and describes complex systems research in a short video. Pupils...

Real estate is all about location, location, location—and perhaps a little bit of math. A set of two videos has real estate appraisers describe the work that they do. Scholars discuss how mathematics plays a role in these jobs to...