Sunday, April 30, 2017

All Crunchzilla tutorials now open source

All the code is now available for all the Crunchzilla coding tutorials.

Code Monster, Code Maven, and Game Maven from Crunchzilla have been used by hundreds of thousands of people around the world to experiment with learning to write computer programs.

There have been many requests to make them and available in languages other than English.

By open sourcing the Crunchzilla tutorials, I hope three things might happen:

Translations: I hope others are able to take the content and translate part or all of it into languages other than English for use in more classrooms around the world.

New lessons: New tutorials might teach programming games, working through puzzles or math problems, or perhaps a more traditional computer science curriculum aligned with a particular lesson plan.

Entirely new tutorials: Some of the ideas and techniques -- including the step-by-step learn-by-doing style, live code, informative error messages, and avoiding infinite loops in students' code -- might be useful for others.
The code was designed to be all static, so you can easily create your own version just by editing the files and then putting all the files together on your own server. There is a single JSON file that contains all the lesson content.

If you use the code for anything that helps children learn, I'd love to hear about it (please e-mail me at

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