Move to the number

Pick a number (One that your child is trying to grasp the concept of how many that number is) and then pick a way to move your body (i.e. jump, march, smile, etc).  Then do that movement that number of times.

For example:
  ~Stomp 3 times
  ~Smile 3 times
  ~Clap 3 times

When you want your child to review mulitiple numbers, then do the movements different number of times.

For example:
  ~Stomp 3 times
  ~Smile 7 times
  ~Clap 2 times
  ~Clap 6 times