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The Slippery Road From Actions on Objects to Functions and Variables

Tamar Paz; Uri Leron 

January 2009, Volume 40, Issue 1, Page 18

Functions are all around us, disguised as actions on concrete objects. Our data show that the intuitions about change and invariance entailed by the action-on-objects scheme, although helpful in earlier stages of learning functions, may later come to clash with the formal concepts of function and of composition of functions.

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Higher Education