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Teaching notes, project walkthroughs, and hands-on electronics guides from Gary and the Mr Circuit team.

3 posts Updated Jun 29, 2026

Battery, resistor, LED, and breadboard arranged to explain how a simple classroom circuit is powered

batteriesHow Batteries Work in Simple Student Circuits

Learn how batteries work in simple student circuits, from chemical energy and voltage to safe classroom use with LEDs, resistors, and breadboards.

Jun 29, 2026· 6 min read

Roadmap diagram showing circuit concepts students should learn before starting robotics including power loops sensors motors and troubleshooting

beginner electronicsCircuits Students Should Understand Before Robotics

Teach robotics with less confusion by covering the circuit ideas students need first: power, closed loops, polarity, sensors, motors, and troubleshooting.

Jun 7, 2026· 5 min read

Labeled solderless breadboard diagram showing power rails terminal strips and center gap for beginner electronics students

beginner electronicsWhat Is a Solderless Breadboard? A Student-Friendly Guide

Learn what a solderless breadboard is, how its rows and power rails work, and how to teach beginners to build safe circuits...

Jun 7, 2026· 5 min read