Drawing with Pens in Scratch
Screencast to demonstrate creating line graphics in Scratch with the pen tool.
This video shows how to program Scratch the Cat to draw a letter of the alphabet using the 'move' and 'pen down' functions. With this mastered, you can then move on to creating intricate kaleidoscopic patterns using the concepts of loops and data.
Graphics are great for differentiation in mixed ability classes because, by looking at the complexity of the patterns on screen, the teacher can tell which concepts have been understood.
Here's the completed Scratch project: