Pretty simple set-up. Students look at the words on the slide, for the first slide they simply look and try to remember. For the second slide, they can write down the words and try to remember. After giving them about 3-4 mins. to look at each slide, take the words away and go around in a circle to test their memory. Each word can only be said once, and encourage them not to repeat any words. Challenging for any level, good retention of vocabulary for beginner-advanced. Hope this works well for you!