The assignment is to get the robot to draw shapes. Start with the Square and the Triangle you made in lesson B3. Then try other shapes with 5, 6, or 8 or more sides.
There are also additional hints shape on the Challenge Hints and Answers.
To insert the pen you need to first remove the cap in the center of the robot by push the back end of the pen into the hole in the bottom. Then insert the pen in to the top hole until you feel it click. You can draw on paper (I like 11 by 17 inch paper but others sizes are fine) or on a dry erase board.
YOU need PENS for this Lesson. The suggested pens are the Crayola Washable Paint Bush Pens. BirdBrain sells them on their website. If you have a large class Amazon sells a large box of 40 pens in 8 colors. I have found another Brand that uses the same pen body that fits just right in the Finch 2.0.
ArtSkills Brush Tip Markers: box of 8 different colors. at Amazon 7.99 or a dollar a pen the day I bought them