Intro Programming
Misconception: Students often have off by 1 errors when working with loops, which can result from mixing up > and >= as well as forgetting that arrays start at index 0.
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Use the model of Towers of Hanoi in order to help students understand recursion. To demonstrate Towers of Hanoi, use three baby ring-stacking toys and the programming language Alice.
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Misconception: Students think the positioning of scripts within the script area in Scratch influences the order in which they are executed.
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Misconception: Students have trouble understanding that when the value of a variable is reassigned its previous value is irrelevant.
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Misconception: Students think that when they create a new variable within a function, that function will automatically return that variable’s value when executed.
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