 | Factor Game |  | Play an interactive game that exercises your factoring ability. Test your skills against a human or the computer. |
 | Factorize | | Divide numbers into two factors, and build arrays to represent each factorization. |
 | Product Game | | Exercise your skill with factors and multiples. |
 | Scale Factor |  | A common misconception is that when the dimensions of an object are doubled, the area is doubled, too. But this is not true! Use this applet to investigate how changes in the scale factor influence the ratio of perimeters and the ratio of areas between two figures. |
 | Trout Population Calculator |  | Explore the growth or decline of a trout population in a restocked pond. |
