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* to support and encourage powerful ways of thinking"
 
* to support and encourage powerful ways of thinking"
 
* to enable programmers to see and understand the execution of their programs"
 
* to enable programmers to see and understand the execution of their programs"
He contrast this with the [http://www.khanacademy.org/cs tutorial approach] taken by the high-profile Kahn Academy.
+
He contrasts this with the [http://www.khanacademy.org/cs tutorial approach] taken by the high-profile Kahn Academy.
 
While neither Etoys or Turtle Art currently support all of the affordances recommended by Victor, the vector is pointed in the right direction.
 
While neither Etoys or Turtle Art currently support all of the affordances recommended by Victor, the vector is pointed in the right direction.
  

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