Read the directions and use the tools on the side to fill in the place value chart. If you need to make the chart larger, use the + in the magnifying glass and click the screen. To write the names of the place value units and the digits, you will press the T in the tools and this will let you type in the chart. Then to draw the disks you click the pencil and then choose scribble. If you need to erase, there is an eraser in the tools as well.