Tina's Pen

Turtles like Tina have a pen that draws when they move. We can tell them to pick the pen up, so that they can move without drawing a line. Then we can tell them to put the pen down, and they'll draw again. We tell them this with the penup() and pendown() commands.

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Thanks to Trinket.io for providing this assignment, part of their Hour of Python (opens new window) course.