Students who are preparing projects for this year's PYP expo will be making Electric Quiz Boards in STEM class. The basic idea is to create a set of questions and answers, and a board to display them on, and when the user connects a question with an answer, if the answer is correct, an LED will light up to indicate the answer is correct.
Here are some good instructions of how to build an Electric Quiz Board:
For a few ideas of different board designs, see this video
Here's a slightly different variant of the Quiz Board. One question, but multiple answers.
Look out for future posts of our projects!