What is it?
JIt concerns simple, interactive PDF files, where a student looks for correct answers or a matching pair (for example, a function and a graph). Look at the examples:
The use for teachers?
When you finish you will see a word and graphic evaluation and the correction solution. Some games contain a secret answer that is revealed with the correct answers. The secret answer is the quote from a famous mathematician, philosopher or politician, whose portrait and interesting things from his/her life are available by clicking on his/her name.