Montessori Zoology Material - NEW Plywood Fish Puzzle Fish - Small wooden animal puzzles with plastic knobs he Fish Puzzle is great for teaching zoology or just for use as a fun activity for toddlers and elementary-level children.  It measures 24 cm x 24 cm (about 9.5 in x 9.5 in) and is made of durable, warp-resistant plywood with a satin-touch, natural wood finish.  Each puzzle piece is fitted with a wooden knob for easy removal, and the image is silk-screened directly onto the wood and then covered with a clearcoat to protect it for years to come. These wooden puzzles represent the characteristics of the different vertebrate groups. The main parts of each animal body can be removed by the child, i.e. the head, the tail, etc This puzzle illustrates the component parts of the fish. The main parts of the body can be removed by the child.