Before we start with this module’s theme, we would like you to have a look at this small puzzle.

In the rectangle below you can draw using the mouse of your computer.

Your task is to connect the same letters. 

• Connect A with A, B with B and C with C.
• You are not allowed to cross the three connecting lines with each other.
• You are also not allowed to go through another letterbox ( for example, do not go through box A if you want to connect B with the other B).
• If you want to try again, you can click the little ‘clear’ button in the left-bottom corner of the drawing field.