Differentiated lesson on two way tables and calculating probabilities of certain events but also including making a two way table. There are GCSE questions for students to complete as well as questions to complete on mini whiteboards. There is also a plenary activity looking at the three levels of challenge within the lesson. I usually get students to do this in silence to get them to check their learning in the lesson. This can then be peer assessed or self assessed as the answers are on the next slide.