Grammar rules
Articles, tenses, countable and uncountable — the contrast is the point.
Two to six columns, a pile of cards, one decision each: where does this belong? The columns are the second column of your set, so a rule you already teach becomes a game.
Pairs: the card in one column, the bucket it belongs in in the other.
Two to six distinct bucket names — the second column repeats on purpose.
Cards can carry text, a picture and a sound at once.
Articles, tenses, countable and uncountable — the contrast is the point.
Group vocabulary by topic, animals by habitat, verbs by irregular forms.
A card can be a sound or a picture, so sorting works before reading does.
Keep the game, timer, tasks, and notes on one screen — no jumping between tabs during class.