Explode the Controller – Spring, 2019 Overview

Why do we want to move our bodies in a coding classroom?

Physical activity has always had a place in my teaching practice. As a fourth-grade math teacher, I sought opportunities to include active games and movement breaks in my lessons because young learners benefit from these engaging interludes. Whether, as some research suggests, physical activity is measurably connected to cognition, or whether it’s simply fun and inclusive, my observations suggest that students who move around are more engaged and better prepared to learn.

The Explode the Controller project began with a teaching question: “How can I incorporate more physical activity in a creative computing classroom?” In STEAM education, the efficient, handheld devices we use to create and interact with code prohibit active movement and exercise. This project explores the boisterous possibilities of devices that encourage running, jumping, and dancing to interact with our coding projects, replacing the traditional video game user interface (mouse, keyboard, etc.) with homemade devices that encourage dynamic motions.


For ease of reproduction and modification, all controller designs use common, inexpensive materials and basic construction methods. Free build instructions and links to students’ Scratch games can be found on the Explode the Controller website.



Explode the Controller Activities

In summer 2018, students most often worked in pairs or small teams to create a Scratch game that could be played on an ‘exploded controller.’ Working sessions were concluded with an ‘arcade’ where teams shared progress on their games, asked questions and got feedback. For example, students created a simple Avoider-type game in Scratch 3.0 where the player must dodge incoming asteroids by balancing on the see-sawing ‘❤ Rocks Board’ and tilting it to move the ship. A micro:bit microcontroller attached to the controller sends tilt angle data from its accelerometer to the game via bluetooth, and Scratch uses this information to change the position of the ship sprite.

A prebuilt controller device was usually provided for students to play their game on, though many teams made physical modifications and a few designed and fabricated their own controllers (original student game and controller design.)

Results as of 2019

Unsurprisingly, adding large scale controllers and dynamic, unfamiliar actions to the game design curriculum made the computer lab a boisterously fun place in the summer of 2018. Explode the Controller was a success in connecting physical play and exercise to student created Scratch games, and produced lots of dynamic movement, joyful yelling, and friendly competition.

What emerged as the more exciting aspect of this approach was that it also appeared to motivate students of diverse age and coding experience to participate in the programming and design parts of the challenge. Most all students enjoyed the novelty of the jumping and balancing, but the novice coders, in particular, seemed more invested in their games and more collaborative with peers when designing for an ‘exploded controller’ than they did when designing for familiar user input devices. While this assertion requires further study, it is based on consistent observations that novice coders asked for more precise assistance with their Explode the Controller coding projects (i.e. How can I make this move faster? Where can I change that color?).

Why should novices be more engaged with designing games for an exploded controller? Perhaps they are encouraged by the integration of familiar, physical play elements within their first programming experience. Or for students who are easily frustrated, it may be that the novel input device prevents a disheartening comparison of their work with professionally developed software. In any case, the broad appeal of these activities to diverse learning groups is a valuable attribute, particularly to efforts seeking to include more students in STEAM education. The Explode the Controller project has always been, first and foremost, a teaching experiment to improve my afterschool work with underserved students. Most of them attend schools without rigorous STEAM curricula, especially regarding exposure to creative computing. While a few have developed coding skills outside of school, the majority are authoring their first projects, and require significant support to get started successfully. The wide range of ages and backgrounds in this learning community present additional challenge to engaging all students in collaborative work. These challenges are hardly unique to my local learning community, and represent significant practical obstacles to including more students in high-quality maker education. The Explode the Controller project’s success in engaging diverse groups of novice programmers suggests that examination of its core principles – physical play and collaboration in STEAM – would be valuable to the greater effort.

History and Educational Setting

The Explode the Controller project began as a coding curriculum experiment in the summer of 2018 for the ‘Learn 2 Teach, Teach 2 Learn’ program at the South End Technology Center at Tent City, a not for profit, neighborhood education organization for underserved youth in Boston, Massachusetts (SETC). The devices and lessons developed for the project have since been used in SETC’s pop-up STEAM events for Boston youth programs, and in a weekly coding club in partnership with the Vibrant Boston after school program at the Lenox-Camden housing project.

At the SETC ‘Learn 2 Teach, Teach 2 Learn’ program, 30 youth teachers from neighborhood high schools were trained over twelve weeks in educational technologies, including fabrication techniques, 3D design and printing, Scratch programming, and the use of various microcontrollers. Explode the Controller activities were included as part of their training in Scratch coding and video game design. Students’ previous coding experience varied from first-time coders to students familiar with multiple coding languages. Students in this group were predominantly african american. Most students attended public schools in Boston.

Since October 2018, Explode the Controller activities have also been offered as a weekly coding club at the Vibrant Boston after school program. Participating students are 7 to 16 years old, and are residents of the Lenox-Camden housing project or surrounding neighborhoods. Again, previous coding experience ranges from first-time coders to students with multiple years of instruction in Scratch or other languages. Students in this group are predominantly African American or Hispanic. Most students attend public schools in Boston.

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