Joon Kim

Start by having students transpose code from one loop type to the other when teaching all the different conditionals for the AP CS A exam.

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Create engrossing assignments by taking into account the age groups and interests of your students!

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Tie the importance of searching and sorting to internet search engines, then encourage students to create search mechanisms for data they want to analyze.

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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 ArrayLists for the AP CS A exam by having students uncover interesting information from your past students’ grades.

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When teaching arrays, have students complete the Four Rotations problems in pairs.

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Have students reason about optimization by creating a program that’ll make an 80 minute playlist for a party.

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Introduce memory and efficiency a few months into the AP CS course. Do so in a hands-on way by demonstrating how a computer cannot compute a slow problem.

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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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