You can cut geometric figures into pieces that you can rearrange to form different geometric figures. Show how the midline cut of any triangle can be used to form a parallelogram. View non-Flash version.
The computer makes up a mystery operation and you have to figure out what it is. Keep entering pairs of numbers for the computer to calculate and try to find the pattern in the answers the computer gives until you think you know what's going on.
Many Renaissance artists and architects used the concept of the golden mean which was thought to be visually pleasing. An Italian mathematician developed a series of numbers related to the golden mean; see if you can detect the pattern.
Click through each representation to see how the display of relative frequency relates to the display of cumulative frequency and their corresponding histograms. Examine how each method is useful for summarizing the variation in numeric data.