ABC cards are coloured cards that students use when contributing to a discussion.They work really well in classes where students are keen to answer, but their answer sometimes lacks focus or relevance. The students raise the relevant card when they want to make a point, meaning that you can guide the direction of the discussion too.
A stands for 'add' so students use an add card when they want to add a point to the discussion that is separate to the last point. B stands for 'build' so this card is used when students want to develop what has already been said. Finally, c stands for 'contest' and is used when students want to disagree with the point that has just been raised.
Stephanie Lowry