Stephen and Jonathan both told us that incorporating an elevated surface like a box or a bench reduces the distance between you and the floor and makes the burpee easier. There's less range of motion here and also less impact on your joints.
- Lower into a crouching squat with your hands on the bench or whatever stable elevated surface you have.
- Do a squat thrust by jumping your feet back into a plank position with your hands still on the bench.
- Do one basic push-up, bending the elbows and then straightening back to plank.
- Jump the feet forward to the bench, and come into a squat.
- Do an explosive jump straight up, getting as much height as you can. This completes one rep.
Note: this video shows a modified version without push-ups.