This matching game is split into two PPTs: a short version (6 pairs; 10 mins) and a long version (12 pairs; 20-25 mins).
Directions: (also in the PPT)
Divide the class into two teams. Each team then takes turns choosing TWO numbered squares. If the two squares are the same, then the team gets a point. If the two squares are different, then click on the red circle to hide the picture again.
Students must try to remember where the matching pairs are.
Notes:
The short version was used as a warm-up, and was done as a class rather than putting students into teams. Also exclusive to the short version, when all matches have been found, click the blue button at the bottom right corner.
In my experience, the most effective way to play this game is to let the team that finds a match get another turn. When choosing squares, encourage them to say the numbers in English.