Explain each of the following terms: (a) Kick board (b) Back stroke

(a) Kick board: A buoyant, lightweight foam flotation device held in the hands by swimmers to support the upper body while isolating and strengthening the legs during flutter, breaststroke, or dolphin kicking drills. (b) Backstroke: A competitive swimming stroke performed with the swimmer lying on their back. It features an alternating, continuous circular arm pull accompanied by a rhythmic flutter kick, with swimmers starting in the water grasping the starting handles.