Since we deal with mathematically minded students, even if their level of English is not too high, they are eager to demonstrate that they are good at maths, they know the answer and they try to explain the puzzle. They correct themselves and their classmates while giving explanation and try to make it as clear as they can. Mind maps, asking questions using visuals and demonstration of experiments which the students are supposed to explain are good instruments for triggering students’ activity at the very start.