I am being observed next week for maths and will be introducing probability to my year 5 class for the 1st time. For the main session of my lesson we will be learning about probability in terms of the vocab used such as certain,likely, impossible etc. I will also talk about the prob scale however not talking about numbers at all at this point (I have quite a low ability class) They will work in table groups (4's) to sort a variety of sentences according to the likelihood of them actually happening. This is where I am stuck. I know that my top group will work with me so I can introduce them to using fractions in prob, my bottom group will sort statements onto the prob scale, but I am having trouble coming up with a meaningful activity for my middle group to do without involving numbers. I also feel that I need something more mathematical in my main teaching bit before going onto independent activities and wondered what suggestions other people may have? Thanks for your help.