In this article, the author shares some of the activities for the classroom invented by Gill Hatch. One of those activities is the activity for older students, which is for the five-year-olds through to post-graduates. Card-sorting game, geometry games, algebra games, and loop games are also some of those activities for the classroom invented by Gill Hatch. She suggests that games can contribute to learning by: (a) generating a surprising amount of practice; (b) creating a context for mathematical reasoning; (c) getting pupils to make generalised statements; (d) introducing difficult ideas and developing concepts; and (e) helping pupils to work above their normal level. Furthermore, Hatch states that playing games encourages discussion between pupils and puts pressure on them to work mentally. [This selection of activities was made by Barbara Ball]