A simple Um world The aim is to guide the Um to the hole in the wall. Some objects disappear when touched, some move, others block. Some explode! The simple levels lead students into an understanding of the need to plan ahead.
A little more difficult This is a more challenging Um world. The exit is not yet visible.
The Um Editor This is the most rewarding part of the package for most students. Using the Editor they can create their own puzzles and, in doing so, gain an understanding of the different ways people go about solving them.
