I lay out alphabet cards (they are 8x10 size) around the lr and call out a letter (or a sound, or an animal - each one has an animal with that letter) for each child to find. They run around in circles for a little while until they find it (or just run around for a while
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We have a long hallway from my bedroom to the LR and then a circle around the kitchen back to the hall. They give me five while I fold clothes (or just sit) on my bed then they run down the hall and around the circle and back for another five.
HYPERDASH!