Debates. Students work in small groups and give reasons why their key word is the most important out of the ones in their group! I love a good maths ‘row’!
Put class into teams and blu-tac some or all of the words to the board. Ask the teams to number each member, example 1 to 5. Player 1 from each team then comes out. Either the teacher or another learner describes the word and the student who ‘splats’ it first with their hand gets a point. You can remove them from the board as you go along or leave them all up. All Player 2s then come out and the game continues ….
Learners are given a card/cards at random. They can then make up a question based on the topic on their card. If you want to make it more difficult for them then you could state certain numbers which must be used in the question or what the answer must be, for example, 3. This can be done individually, in pairs or groups.
If you would like a set these cards, suggested activities, along with blanks if you want to add your own, are available to download here from TES.