Sadly, Dr. E’s WeDo Challenges and Dr. E’s MINDSTORMS Challenges will no longer be posting new challenges. However, both websites will remain up so that you can continue to access the previous challenges and all of the wonderful submissions. Thank you to LEGO Education and to the Center for Engineering Education and Outreach at Tufts University for their years of support (and thank you to LEGO for their amazing robotics platforms). During the six years of WeDo challlenges and five years of MINDSTORMS challenges, we received almost 1000 submissions from around the world. The two websites had a total of 1266 registered users from 57 different countries. We were truly a global community! We have always been inspired and energized by the creativity and innovation shown by the Dr. E's Challenges community; while new challenges won't be posted moving forward, we hope that you continue doing awesome stuff in your homes, clubs, and classrooms and that you continue to share your projects with the world! Collaborating with all of you has been a joy and an inspiration. Thank you, The folks at Dr. E’s

The Principal Prank


 I chose a scene from the book The Terrible Two written by Mac Barnett.  In this scene, Miles is slipping a note under the door to trick the teachers to get out of the teacher lounge so he can pull a prank on his principal.  I enjoyed building the setting, look closely and you'll see the note under the door.  



  1. bbratzel

    Love your teachers’ lounge, with the bookshelf and the teachers at their desks. Your mechanism to have Miles peek out from behind the plant is excellent!

  2. MVES

    Karen – I love your setting and all of the details you included, I especially like the tiny note you created and placed under the door. GREAT JOB! Your entry peaked my interest and The Terrible Two is now on my Summer Reading list. 🙂

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