Knock Knock Calculator

Created by Khalil Klouche, this fun and entertaining calculator was made for small children to help teach math. The wooden calculator would created a knocking sound and the user knocks back to give the answer. This toy was created for the ‘Touch!’ exhibition at MUDAC in Lausanne in 2012. Watch the video below to see more and how it works!

Knock Knock from Khalil Klouche on Vimeo.


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