This is what all the other PreKeys lessons lead up to. The teacher or tutor will use PowerPoint slides to guide the discussion. Every student will key, type, poke or pound the answers to the question. The teacher or tutor gets an instant visual assessment of which students are getting the right answer. The students are developing kinesthetic as well as visual and oral memory of the way vocabulary words are spelled.
See also http://padlet.com/keyboarding_arts/prekeys