Stand upright with two small discs or plates on the floor in front of you.
Step on to each disc.
Bend down and lift one foot up, maintaining your balance.
Pick up the disc and move it slightly in front of you.
Place your foot down on top of this disc then bend down and lift up the other foot, picking up the disc and moving it slightly in front of you.
Go from plate to plate, bending down and moving the plates, until you have gone the specified distance or required number of repetitions.