turtle(same position, direction, color, brush, etc.).
turtleforward by the specified distance.
row). Do not draw along the way.
turtleface the diretion specified by
angle(clockwise from right).
turtle's brush down. When the turtle moves forward, it draws with the brush.
turtle's brush. When
turtlemoves forward, it will not draw.
Copyright (c) 2007-9 Janet Davis, Matthew Kluber, Samuel A. Rebelsky, and Jerod Weinman. (Selected materials copyright by John David Stone and Henry Walker and used by permission.)
This material is based upon work partially supported by the National Science Foundation under Grant No. CCLI-0633090. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
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