To clean a new page, click the green flag. It will ask you to enter a number such as: 0,3,4,5,6, and 8, based on what shake you would like to draw If you enter 0, for example, it will draw a circle Once you chose a circle, it will ask to type in a random number to decide on how big the circle should be (don't pick a bigger number that 100 because it might go off the page!) If you chose any other option but 0 then it will go ahead to draw what shape you decided based on it's number of sides.
