Before we can use data it needs to be collected. A computer can quickly create a chart or graph from our data. It can create a chart or graph much quicker than a human can. It's more difficult to ...

This applet will help you in visualizing the effects of transformations on functions. Move the sliders on the right to change the translation and scaling factors ...

Graphs, maps and charts from The Times — and an invitation to students to discuss them live. What do you notice and wonder about the severity of drought in the U.S.? By The Learning Network ...