Teaching About Distance Using The Football Throw

After we do our normal warm ups, stretches and strengthening exercises we have the kids set up our field to measure how far they can throw the football. The numbers go from 0-100 feet in 10 foot increments. The students take turns throwing the football as far as they can. They record the length of the 3 separate throws in their journals. The kids are given jobs such as impact marker, ball retriever and 2 relay throwers that give the ball back to the next person throwing for distance. After the mark the students must figure out how far they threw the ball. In today's lesson we rounded up or down to the nearest 10 foot mark. Questioning includes asking the students for predictions, estimations and trends.
This is another lesson that shows that our kids have mastered the ten times tables but have a hard time using that info in a real world setting. It was not easy for them to figure out where the ten foot markers should go. At first they put the markers in a circle. We had previously taught them how to pace out 10 feet. We have had lines on the ground that marked ten feet increments for the past year. Once we reasoned through the ten and twenty foot markers they did pick up on how to place the rest of the markers. 
Extensions of this lesson could include getting a total of the feet thrown, finding the average, charting the throws, etc. We hope to increase the number sense of our students.
Throughout the lesson we critique the throw to show the basic proper throw. We use point, step throw as a mnemonic.