Included in this purchase is a 41 slide PowerPoint presentation for "calling" bingo with a different clock on each slide (38 different times). Also included is blank Bingo card (prints 2 per page). Simply print enough blank Bingo cards for everyone in your class. At the beginning of the presentation is a slide listing the 38 different times. Using this slide, students randomly choose 24 of the 36 times and fill in their own Bingo card. (Make sure to tell them to put the times in random order!) Once the Bingo cards are filled in, you are ready to play. Just click through the PowerPoint in order or choose slides randomly making sure to keep track of the times you have shown so you can check the winner! I started using this method of playing Bingo years ago with my classes. The kids LOVE to fill in their own cards.