A complete hands-on STEM electronics pathway for grades 6 to 12 that helps students build three real working projects while learning circuits, troubleshooting, and physical computing. Bring real electronics into the classroom with the TechBox 3-Kit Learning Pathway, a complete hands-on STEM learning system designed for grades 6 to 12, approximately ages 11 to 18. Students progress through three working electronics projects: the Laser Stem Matrix, which introduces breadboard wiring, pushbutton input, microcontroller connections, and addressable LEDs; the LCD Alarm Clock, where students build a functional clock with display output, timekeeping, audio, analog input, and user controls; and the Piano Memory Game, an interactive project with PCB-mounted buttons, multiple display types, and integrated controls. Each build helps students wire, test, troubleshoot, and understand how real electronic components work together in a complete circuit. The pathway includes reusable hardware, interactive 3D build instructions, video-led digital curriculum, built-in assessments, and an educator dashboard with project tracking, group management, facilitation resources, and learning-check data. Available in a 12-Pack for 12 to 24 students or an 18-Pack for 24+ students, TechBox is ideal for STEM classrooms, CTE programs, electives, summer camps, clubs, and enrichment settings. With no subscription required, browser-based access, no software downloads, and approximately 3 to 5 weeks of flexible instruction, TechBox gives teachers an easier way to launch meaningful project-based electronics learning while giving students three finished builds they can understand, explain, and be proud of.