The Big Pixel Microworld

Microworlds are sandboxed learning environments, often used for a particular educational purpose. We introduce the Big Pixel Microworld, to allow young students to explore and visualize functions that operate on the discrete 'pixels' of the XY coordinate axes. They can change the size of a 'pixel' by 3x (a single 1x1 big 'pixel', or 3x3, 9x9, 27x27 grids etc. all the way down to 729x729, in which one displayed 'pixel' is one screen pixel).