Here's a self-guided (self-paced) playground skills progression that students work autonomously on, giving them ownership over their own learning, and a purpose! There are 9 skills to work on! You can use this in class or even have them do it during recess. Classroom teachers might like this resource. You may have to substitute some of the skills if your playground doesn't have anything similar, or just have students skip the ones that don't exist (thought they can be very creative!).
This frees to the teacher up (they are so engaged!) to help those who need it most. These can work with Plickers magnets (plagnets) assessment system as well to track the learning (or students can also write their initials or similar on a whiteboard to track their progression). I project it on a movie screen, but they can also be printed out. SHAPE America grade level outcomes included in poster.