Have the ability to ask a question with multiple answers (e.g. what are the best features of Ahaslides), fill in correct answers (e.g. word cloud, polls, quizzes, etc.), and have students enter answers. If their answer is correct it can pop up on the screen, if it is incorrect it can go into another "pool" to review misconceptions at a later point. 

It reminds me of a "Family Feud" style where you'd have a set number of possible answers to match with instead of just one potential answer/needing to give students answers to choose from or having an open ended cloud option with potentially incorrect answers.