Each international group must:

A) Each group makes a real life problem collaboratively, where you ask:    How much does a car in your family contaminate a weekly trip?

B) Have you already written your group problem? Then code it using your own mobile QR coder.

Your teachers will use it to create a GAME called Maths Gymkana which you'll play on a certain date.

C) Solve a problem raised in another group following your teachers instructions on the Maths Gymkana Day.