STEM for Preschoolers is a hands-on, play-based curriculum designed for children ages 3–4. It introduces core concepts in science, technology, engineering, and math through short, engaging activities that use simple materials. Each lesson encourages curiosity, creativity, and problem-solving while building foundational skills such as observation, measurement, categorization, and early experimentation. By blending interactive play with structured learning, the curriculum helps young learners develop confidence, expand their vocabulary, and discover the joy of exploration.