STEM Toys For 4 Year Olds are great because they provide a fun way to get kids excited about STEM without them even realizing it! STEM toys are educational toys that help kids learn STEM skills through hands-on play. STEM toys are a great way to teach your child how the world works. STEM toys are STEM education. STEM stands for science, technology, engineering and math and STEM education is one of the most important ways that children can learn about these subjects.