And my take on the speaking portion, complete with worksheet and memory game. With the memory game, you should ask them "Are you sure?" each time they give an answer. If they're sure and they're correct, let them choose a card. If not, you can either show them the correct answer or give other teams the chance to answer. If they say that they're not sure, have them give another answer until they're sure. You will need to play around with the memory game to see how I've set it up. Questions should be brought here.