Instructions: https://docs.google.com/document/d/1tB-y1ccD3urPXIOdYTDnB6sZWhb95v8mcoiOtvLfsUg Overview: https://docs.google.com/document/d/1uq0PucvAYgGmJt-7eakmFVagUksGo21YvL-hzHaCeb0/ Finished Example: http://scratch.mit.edu/projects/43664972
