This is a set of pictorial problems to accompany the teaching of the natural number series. The three different versions are the same but formatted differently.
A matching activity in which students compare the two different forms on the definition of a sequence, deductive (nth term formula) and inductive (recurrence/recursive formula)
This is a discussion based activity. Students decide whether the binomial distribution is an appropriate model for 12 different situations. It comes with solutions and discussion points.