One of the more challenging aspects of teaching high jump to Grade 4-5 students is helping some of the students work out which is their take-off foot. This year, we set up the High Jump in the gym and next to one of the high jump beds was an ipad on a tripod, connected to a projector. The ipad was using BAM app, which videos the action and then plays it back with a time delay chosen by the user.
Students performed their jump, got of the back of the mats and went to watch their jump. One of the students who had a broken arm, was there to help them work out if they were jumping off the correct leg, leaving me to work and provide feedback to other students.
This simple method dramatically increased the amount of feedback students received in a lesson!