Set up an obstacle course either outdoors or in the classroom or home. Use items that don't have sharp edges or any other potential hazards. Things like couch cushions, small chairs, benches, rubber garbage can, hula hoops and whatever else you can find will make a great course. Talk about the words, "over," "under," "through," and "around," then see how many of these different ways of getting through the course you can use.
Rhythm and dance are appealing to many pre-kindergarten students, so have some CDs on hand that you can play during a physical activity. Songs like the Hokey Pokey have motions to go along with them already, and kids can learn the names of body parts while they play too. Use your imagination and come up with movements to go with any of the songs your preschoolers like to sing, or play a version of musical chairs by having the children dance when they hear music and freeze when it stops.
Find some empty boxes or cans to use for blocks and stack them up outdoors or in a wide open space indoors. Give each student a turn rolling a spongy or bouncy ball at the blocks to knock them down. Talk about the difference between the different types of balls and blocks. Is it easier with one type than the other? Have students also practice fine motor skills by allowing them to stack the blocks up again after they've been knocked down.
Blow up a small balloon and sit with all the students in a circle. Pass the balloon all the way around the circle, first just with your hands, then passing it behind your back, then under one leg, etc. Get creative and try moving the balloon around the circle without anyone using their hands, or with each child's eyes closed. Sing a song, such as "This is the Way We Pass the Ball" to accompany.