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

Guarded Box

Guarded Box: Build a box to hold a treasure that is 8 cm long, 2 cm wide, and 2 cm high.

Design a guard animal for the top of the box—one that will wake up and make noise if the lid is lifted.

Measuring the Box: How much room is there inside the box? Find the inner dimensions of the box: length, width, height.

How big is the box? Find the outer dimensions of the box: length, width, height.

How much room does the guard animal have? Find the length, width, perimeter and area of the guard animal’s space (that is, the lid of the box).

Sounding the Alarm: How far can you lift the lid before the guard animal sounds an alarm? Find the largest angle that works and measure it. (Younger students can measure the height of the lifted lid 4 cm away).

Test the lid several times. Do you get the same number each time or does the angle vary?

Do you think you can place a LEGO in the box without waking the animal? Try it.

Sample solution:

guard box



Leave a Reply