I did a fun activity with the B2 group today – a game taken from Straightforward Upper-Intermediate which practises word formation.
Each group of two or three students has a question board and there is a questionmaster who has the answer sheet. The object of the game is to get for boxes in a row (horizontally, vertically or diagonally). Learners choose a square and must produce the correct form of the word given; if they’re correct, they win the square and can colour it in.
Use of English activities can sometimes be a little dry and although this has the disadvantage of not showing the word in context (which goes a long way to helping identify the form of the word needed in the exam), it does make for an enjoyable, competitive way to practise this skill.