Iterated Maps for Middle Schoolers

A collection of five maps created for a friend who teaches 6th-Grade math. My friend's students learn about functions, coordinates, plotting points, and use of spreadsheets, so we thought they might like to put all of those skills to use in a way that´s fun as well as instructive. The rule used in the first map is simple enough for students to do the work manually, on graph paper, before using the GeoGebra worksheet. The fifth (and last) map follows the complicated rule that was used to generate the fractal shown on the worksheet.