I've been teaching kindergarten for almost 10 years now. This video has some very useful tips. For teachers, always look to have variations on your activities, so you get more mileage out of them. For example, the "flash" technique is simply showing the card to the children very quickly. But if you tweak it, it becomes new and exciting for the children. Hold it behind your back and spin around. The card is only visible for a second, just like the "flash" technique, but to the kids, since it is presented differently, it captures their interest. For the "slowly, slowly" technique, wiggle the fingers of your opposite hand above the card while sliding the card up with your thumb - to the children, it looks like "magic". You can also turn an imaginary crank to slowly raise the card up, put your fist to the side with your thumb out and pretend to blow up the flashcard like a balloon (your extended thumb being where you blow into), again slowly raising the card with your thumb. Pumping an imaginary bicycle pump can raise the card as well.