This is a memory game. It's based on opposites adjectives in Spanish, such as, bueno-malo, alto-bajo, etc. It's a great game to do in pairs, or groups up to 4 people. This can take anywhere from 10-20 min. depending on the amount of people playing it. I suggest doing this on a review day or as fun, but a bit longer warm-up activity.
Print and cut in card stock paper for durability. Make multiple sets (depends on class #'s).