Motivational Materials

Print out this page and try this exercise.

Join the nine dots, using four straight lines only. Your pen must not leave the page and you may not repeat any line.

You may have remembered or realized that the assumption that has to be eliminated is the one that says, 'You have to stay within the square'. However don't become too smug. Can you do it again with the same rules but using three lines or less? What assumptions are you limiting yourself with now?