Take the leaf of an aloe vera plant. Cut the base of the leaf and discard it. Take a sharp knife. Cut the edges of the leaf and discard them. Place the leaf flat on a flat surface and slide the knife horizontally to cut the thin green sheet part of the leaf from one side. Again slide the knife from left to right to remove the aloe vera sheet. Place it on a chopping board and cut into vertical strips 1st of 1/2 inch thickness. Then cut them into 1/2 inch square pieces to get chopped aloe vera.