10.3 Pen Drawing
10.3.1 Understand the Coordinates
10.3.2 Drawing with Pen block
Use Pen Block
10.3.3 Drawing a shape
Drawing a square
10.3.4 Refactor to use function (My block)
10.3.5 Drawing lines practice
10.3.5.1 Drawing a Polygon
10.3.5.2 Art of lines
10.3.5.3 Carton Picture
