Pizza Pickle Scratch Debugging Activity

This Barefoot Computing activity challenges lower-primary children to debug simple Scratch programs that assemble pizzas on-screen. A simple four-step process for systematic debugging is demonstrated.

Using logical reasoning and learning-by-doing, children predict the outcomes of algorithms that contain errors and work to fix them. Ready-made programs for all versions of Scratch (online and offline) are provided along with instruction and recording worksheets which can be used for assessment.

A range of other programming environments can be used for the exercise, but prior preparation of the basic programs would be required.

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