Jumping Jacks Children will time themselves and chart their progress as they do sets of Jumping Jacks. Materials Needed: • Stopwatch • Recording Sheet Introduce Activity: 1. Explain that today we are going to be timing the number of Jumping Jacks we can do in 10 seconds. “Does everyone know how to do a Jumping Jack?” Model how to do a Jumping Jack. 2. Before you have the kids start their activity, have the children wave their hands in the air so they get an idea of how long 10 seconds is. Engage the Children: 1. Have the children predict how many Jumping Jacks they can do in 10 seconds. Have them use their recording sheet to keep track of their prediction. 2. Say, “Ready, set, go!” and begin timing for 10 seconds. Encourage the children to count the number of Jumping Jacks as they jump. 3. Say, “Stop!” when the 10 seconds are up. Have the children record the number of Jumping Jacks completed. 4. Ask the children, “Does that number match what you predicted?” “Did you do more Jumping Jacks than you predicted?” “Did you do less Jumping Jacks than you predicted?’ Have them record their results. 5. Repeat several times. Each time recording the predictions and the actual number of Jumping Jacks accomplished. Ask the children, “Are you getting better at predicting?” “Which time did you do the most Jumping Jacks?” Additional Extensions • Extend the activity changing the amount of time allotted for the Jumping Jacks. How many Jumping Jacks can you do in 15 seconds? 30 seconds? 60 seconds? • Change the exercises. Hop on one foot, touch your toes, hop on both feet. Compare the different exercises. “Can you do more Jumping Jacks in 10 seconds or more one-­‐footed hops?”