The cards have always been popular, so when I repeated the drawing of fittings with the students of the first year of the Plumber field, I immediately knew which method to choose. I created the cards and set the rules of the game. The rule was that the teacher walked among the students and in the meantime gave the individuals cards with the depicted fittings. Each time the student answers correctly, he sits down.
I created the cards and set the rules of the game.