Tape pieces of paper with numbers on them to various locations around a room, backyard or play area. When you call out the number, the child races to the corresponding number. Call out numbers randomly. You can reward correct choices with a corresponding number of something, such as a treat or stickers.
Tape numbers in the bottom of the cups of an old muffin tin. Have the child place the corresponding amount of items, such as muffins, erasers or snacks, in the corresponding tin.
Hide number flashcards around a room or play area. Have the child find them and place the numbers in the correct order.
Give the child commands "Simon says" style while holding up a number flashcard. The child must do the action the number of times in correspondence with the card. For example, if you say "jump" and hold up the number "2," the child must jump twice.
Read a story that has a counting theme, such as "Five Little Monkeys Jumping on a Bed." Instead of saying the number, hold a flashcard with the number on it. Have the child say the number instead. The child could also count out that number of corresponding paper monkeys to each part of the story.
Draw large circles with numbers on them on the sidewalk with chalk. Call out random numbers for the child to jump into. You can take this up a level by calling out math problems and having the child jump into the answer.
Ask the child to bring you a certain number of items by handing him a flashcard. For example, hand the child one marked "3" and ask him to bring you that many toy cars. Hand him a "7" and ask him to bring you that many blocks.
Make groups of items. Have the child place a corresponding number next to the group with that amount. For example, there may be five erasers, seven trucks and 10 balls. Have the child put the correct number flashcard next to the group.