For students to be able to recognize fish in the area. For students to be able to fish on their own with no major problems. Perch Fish swim by alternating contracting muscle groups on either side of body, in a wave like motion. 2 groups . . . A fish stays a float by use of a swim bladder which is a structure that is filled with gases and helps the fish keep a float in the water.
Fish have fins for locomotion.
Fish have scales for protection, they regrow if lost. The age of a fish can be found by the annual growth rings created by the scales. As a fish gets older its scales thicken. The lateral line helps a fish find its way in the night. Explain to the kids how to cast a fishing pole.