Learning goals

Change the turtle’s shape.

Leave a stamp at the turtle’s current position.

Explain how a stamp stays on the canvas when the turtle moves.

Use otto.shape("turtle") to make Otto look like a turtle. You can leave a copy of the turtle on the canvas with stamp(). Use stamp() to mark where the turtle is. The copy stays there when the turtle walks away.

otto.shape("turtle")
otto.stamp()
otto.forward(50)
otto.stamp()

This leaves a turtle at the start and a second turtle 50 steps further.

Two turtles next to each other

Summary

Command	What it does
`shape("turtle")`	Makes Otto look like a turtle.
`stamp()`	Leaves a copy of the turtle at its current position.