3 years & up. Explore the concept of the life cycle with these fun STEM Learning Realistic Animal and Plant Life Cycle Floor Puzzles. These durable, plastic floor puzzles promote problem solving, early STEM concepts, critical thinking, and collaborative play. Use these engaging puzzles in a science lesson about the life cycle of an ant, frog, sunflower, or corn. Encourage children to ask questions about concepts they don?t understand. Puzzles have 24 large, easy to clean pieces with vivid, real-life images. Finished puzzles measures 18"L x 24"W. Available individually or in a set of four.