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 Dr. E's MINDSTORMS® Challenges website provides an online space where different monthly contests inspire children to design, implement, and share their solutions with a worldwide community of like-minded robotics enthusiasts. Appropriate for doing at home, in after-school clubs, or in the classroom as part of the curriculum, the challenges help develop building, programming, or other skills using the LEGO® MINDSTORMS® platform. Dr. E's Challenges encourage learners to develop creative technical solutions to open-ended problems, and to share their work online inspiring others around the world.

Meet the Team

wedoteam-01Ethan "Dr. E" Danahy

Ethan "Dr. E" Danahy is a computer science professor at Tufts University. He researches innovative uses of technology in education to promote creativity and diversity of student solutions, encourage documentation, and facilitate collaboration. To learn more about different projects, visit

wedoteam-05Barbara Bratzel

Barbara Bratzel is a science teacher at the Shady Hill School in Cambridge, Massachusetts, and additionally works as a consulting teacher at the Center for Engineering Education and Outreach (CEEO), running summer workshops and advising on other educational initiatives. She also writes robotics books for teachers, including STEM by Design and LabVIEW Lessons



wedoteam-04Bill Church

Bill is a former public school physics teacher who has used engineering design challenges and technology toolsets in his science classes for over fifteen years.   Currently, Bill is the executive director of White Mountain Science, Inc (WMSI).  WMSI’s mission is to support STEM education in northern New England through development efforts, consultant work, and instruction in both formal and informal education settings.

wedoteam-02Chris Rogers
CEEO Director

wedoteam-06Rafi Yagudin
Web Developer