Programming Concepts

Use Shapes, Rectangles, and Squares to teach objects and inheritance in Java, tell students they’re the only ones who can complete the job for extra engagement.

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Compare recursion to painting the layers of a Russian nesting doll to help students understand the concept.

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Analogize stacks and interrupts using a story in which a person is frequently interrupted in the course of performing everyday tasks.

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Have students imagine that logical operators are people making decisions to help them think about how the operators work.

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When introducing version control, set students up for failure to facilitate group discussions; it’s crucial that students develop good modes of communicating.

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Because high-school students are interested in driving, transportation is a great model for introducing class hierarchies and interfaces.

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Teach nested loops using ASCII art, building from triangles to diamonds through iteration.

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Use Class Responsibility Collaboration (CRC) cards to consistently introduce ideas like objects throughout an AP CS course.

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Demonstrate swapping variables' values by swapping the contents of two cups full of liquid; you need a third cup to swap the liquids just like you need a third, temporary, variable to swap the values.

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Introduce “base-case” and “smaller-caller” as a helpful way for students to remember the different parts of recursion.

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