Practice telling time with or without the Talking Hot Dots Pens, Use like regular teacher-directed flash cards, with individual students or small groups. Add the Talking Hot Dots Pen (not included), and students can drill independently with Hot Dots instant reinforcement! Students touch the pen to the correct answer and get a positive response. The plastic storage case makes these a great send-home helpers for students needing extra reinforcement. All for about the same cost as regular flash cards!