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

Category Archives: Trick or Treat

Trick or Treat

Goal: Halloween is almost here, so it is time to trick or treat! Make a WeDo trick-or-treater—how it looks and moves are up to you, but it must say “Trick or treat!”


Start date: October 1, 2015
Due date: October 31, 2015

Rules: Your trick-or-treater can be cute, funny, scary–whatever you want–as long as it says “Trick or Treat.” You may use only the sensors and motors from the WeDo kit. However, you are welcome to use multiple WeDo kits, additional LEGO pieces, and non-LEGO materials. For tips on using sound with the WeDo program, check out this snippet: Programming Sound.

This is a joint challenge with Dr E’s MINDSTORMS Challenges. Click here to see the MINDSTORMS challenge.

The machine guardian

Soraya (7) and Daniel (8) have built this guardian that protects the house. They have used the sensor to detect if someone is near and when this happens, the guardian gets up and oooohhhhh, what a scare!!!!   This is a Lego Wedo creation for the October Dr E's Challenges web ( The subject is […]

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The great Frankenstein

Rodrigo, 7 years old, his first challenge. This is a great Frankenstein that moves his arms using gears. As you can see he has a mouth with… some Lego Minifigures inside. It’s terrible….. Frightening!   This is a Lego Wedo creation for the October Dr E's Challenges web ( The subject is Hall…

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The terrifying vehicle

Jas decided to create special vehicle which would be able to scary all neighbors. He collected really terrifying group which can scary all of them.   Some neighbors ordered a pizza. Something strange has happened when deliverer came.     Strange car arrived. People was surprised – they didn’t expect anybody.   Neighbors and pizza […]

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