Instructables is a site that I’ve written about a couple of times during the last year. I love to visit the site for inspiration for all kinds of hands-on STEM projects for kids to do at home and or in their classrooms. On Instructables you’ll find everything from complex Raspberry Pi projects to relatively simple projects developed with cardboard, glue, and other common craft materials. Just like they did at this time last year, Instructables is hosting a contest called the Speed Cardboard Challenge. As the name implies, you have to design and make something out of cardboard. You also have to publish directions that other people can follow to make your project. The contest runs through April 12th at midnight Pacific Time. There are nine prizes to be awarded to contest winners and runners-up. The top prize is a $250 gift card.At the time of this writing there are not any entries into the contest! So you or your students have a good chance of winning. You can see some of last year’s entries into the contest right here. Thanks to online shopping and quarantining there is an abundance of cardboard in my life. Projects like the ones on the Instructables Speed Cardboard Challenge provide a good way to put some of that cardboard to use. Applications for EducationDoing things like Instructables cardboard projects can be a good way to spark students’ imaginations for STEM-related questions to explore. Depending upon the project and the age of your students they could come up with questions about PSI (pounds per square inch), calculating area and volume, or the structural integrity of various adhesives as they interact with cardboard.This post originally appeared on FreeTech4Teachers.com. If you see it elsewhere, it has been used without permission. Sites that steal my work include CloudComputin and 711Web.

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