Circuit Scribe - Intro Classroom KitDraw a direct line to Physical Science in STEM with our circuit drawing pen! The limitless combinations of modules creates an exciting opportunity and is scalable to fit all ages, grades and curriculum standards. Complexity grows as your knowledge grows, allowing you to explore topics in the guided workbook along with the AR App CS Circuits. (iOS & Android) With 30 pens and 110 modules, its perfect for 1 to 1 and collaborative learning groups.