Here is a kind of ‘interactive’ model and actually quite a nice toy: A ‘working’ instant camera made from paper:   So, what do I mean by working? Well, you can turn the crank on the right-hand side and the camera will output a picture you have taken. The mechanism is robust enough to work […] Read more

A machine made from paper which multiplies any two numbers between 1 and 10, using marbles. The path of the marbles throught the machine is a little Rube Goldberg-esque but great fun to watch, and the machine is very helpful in conveying the concept of multiplication to young students. Read more

This is fairly simple and doesn’t require glueing, although some precision cutting: A paper rocket made of interlocking parts: It’s not the most stable toy, and in fact is more something to look at than to play with. However, I like the kind of minimalistic charm of it. Here is how to assemble it: First, […] Read more