STEMfinity provides a wide range of STEM kits, hands-on activities, and learning tools for elementary students. They offer resources in robotics, engineering, and coding, along with free lesson plans and teaching materials. 

                 STEMFinity - your One-Stop STEM shop. (n.d.). STEMfinity. https://www.stemfinity.com/

Khan Academy is a free online learning platform offering a wide range of educational resources for students, teachers, and lifelong learners. It provides video lessons, practice exercises, and personalized learning dashboards in subjects like math, science, computer programming, history, and more. 

             Khan Academy. (n.d.). https://www.khanacademy.org/

STEM Teaching Tools provides practical strategies and resources for integrating STEM into elementary classrooms. Teachers can access research-based instructional guides, hands-on activity ideas, and tools for fostering inquiry and critical thinking skills. These resources help educators create engaging, standards-aligned lessons that build students' curiosity and confidence in STEM. 

           Homepage : StemTeachingTools (en-US). (n.d.). https://stemteachingtools.org/