Movies: How did they do that?

Flip, turn, and slide to get there. With the aid of hands-on materials, pairs transform a figure from one place on the coordinate plane to another. They determine a sequence that will move one figure to another and present different...

Math or life science learners use a TI graphing calculator to create scatter plots of data comparing body weight to blood volume. Questions are answered on the included worksheet about the data. Colorful how-to cards walk learners...

Are two angles enough? Given two triangles, the class determines through the definition of similarity and transformations whether the two triangles are similar. Provided with pairs of triangles and measurements, small groups find out...

Young mathematicians identify different cases of intersecting secant lines. They then investigate the case where secant lines meet inside a circle.

Teach your class that math really can help solve real-world problems. A variety of activities shows learners that they can apply the concept of writing equations and inequalities in everyday life. The lesson begins with a game of...

Did I cause that? The lesson provides definitions of correlation and causation along with types of causation. Within the presentation, pupils analyze erroneous conclusions based upon correlation. Groups then develop a newscast based upon...

Why does the equal sign look that way? The resource explains the reason several of the math symbols look the way they do. Using a few specific examples, the video points out that some symbols are rooted in their meanings and others are...

A source that includes a graph may not always be the best reliable. A short resource highlights how graphs and charts can be misleading. Learners view actual graphs and note the way the graph is distorted to make a point. 

Float like a butterfly, think like a bee! Build a huge hive, hexagonally! Find out the reason that hexagons are the most efficient storage shape for the honeybees' honeycombs. This neat little video would be a sweet addition to your life...

So you have the same variable more than once on the same side? No problem. Just simplify before trying to solve. That means, combine the like terms. Watch as the teacher shows you how to do that.