Models and Designs Investigation 2 Comes to a Close...

We have just wrapped up our hum-dinger creation, as well as the doorbell challenge! During these investigations, groups had to work with a set of materials to replicate two working devices by creating physical models of them. For the hum-dinger creation, students did NOT initially get to see what the hum-dinger looked like. (It was hidden in a paper bag!) They only knew that when you pulled a string, it made a humming noise. When you let the string go, it made a dinging noise. Students had to use their knowledge of circuits and switches to make a working physical model. Then, our groups had to use the same knowledge and experience to construct a working doorbell!