Assignment 3a
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Read/Skim Chapters 10

Assigned:       Thursday February 2
Program Due:    Tuesday  February 7 before class



Purpose: warm-up for scheme assignment, project 3
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1. Download DrScheme (see project 3 top green box for instructions).
2. Start up DrScheme (split view window should pop up)
3. Go to Menu "Language", select "Add Teachpack"
4. Choose Teachpack turtles.ss
5. Type of copy-paste the following program in top window of DrScheme:

(turtles)
(move-offset -200 0)
(define (draw-koch level len)
  (if (= level 0)
      (draw len)
      (begin (draw-koch (- level 1) (/ len 3))
             (turn 60)
             (draw-koch (- level 1) (/ len 3))
             (turn -120)
             (draw-koch (- level 1) (/ len 3))
             (turn 60)
             (draw-koch (- level 1) (/ len 3)))))
(draw-koch 5 400)

6. Hit "Check Syntax" button
7. Hit "Run" button
8. Canvas should pop up, take a screenshot of the Canvas, 
	print it out and bring printout to class, Tuesday.