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Teach students that running tests cannot prove that a code works. It can, however, prove that code is not working.

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  • AP A
  • Content Misconceptions
  • Java
  • Development Methods
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Tips from Deborah Power Carter The College Board’s AP Computer Science Teacher’s Guide.

Other Tips By
Other Tips By College Board's AP Computer Science Teacher’s Guide

Similar tips

Explore students’ syntax errors to reveal their misconceptions.
Introduce terms like declaration, initialization, and operand that often appear in C++ error messages so that students are prepared to understand and interpret the error messages they come across using C++.
Misconception: Students think you can use the “item (any) of (list)” block in Snap! and Scratch to check for every item in a list, but this block actually returns a random item.
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