There are some cinder blocks and cement bricks that the boys must carry across the yard and build the wall. Each week, I plan to increase the number of bricks they are carrying so that over time they can strengthen their muscles and become more disciplined in physical activity.
Last week, was just a starter session and I may possibly video tape the process once they really get in the hang of it.
If you have any helpful suggestions for promoting excercise with limited supervision, please leave a reply (feedback always welcome) :)