2 sets of dominoes related to the vocabulary of the reading "900 new words in 3 months". Definitions are provided for each expression.
English File 3rd Edition Pre-Intermediate Student’s Book, p. 25.
In my opinion, it's a good idea to have a follow-up exercise, too; e.g. make up a dialogue using at least X of the given words. Such a follow-up task makes memorisation easier.