Place two different heights of steps or boxes on the ground.
Kneel down on the ground with your hands on a higher step or box.
Keep your hands under your shoulders and knees under your hips.
There should be a straight line from your head through to your heels.
Lift one hand off of the step and place it down on the lower step then lift the other hand off the step and place it down on the same step.
Repeat this movement to take you back up onto the upper step.
Repeat this movement to take you off of the step again.
Make sure that throughout this movement you keep your back stable and your core engaged.
