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

121 posts Updated Jul 22, 2026
STEM notebook with measurement data beside a multimeter and breadboard circuit
electronics labHow to Use Measurement Data in a STEM Notebook

Teach students to record circuit measurements in a STEM notebook with predictions, data tables, observations, evidence, and clear conclusions.

Jul 22, 2026· 4 min read
Solderless breadboard circuit with labels for prototype measure and debug skills
breadboardsWhy Breadboard Skills Still Matter

Breadboard skills still matter because they help students practice prototyping, measurement, troubleshooting, and career-ready circuit thinking.

Jul 22, 2026· 5 min read
Digital multimeter measuring voltage with probes connected to a beginner classroom circuit
electronics basicsWhat Does a Multimeter Measure?

A beginner-friendly guide to what a multimeter measures in classroom circuits: voltage, resistance, current, and continuity.

Jul 22, 2026· 5 min read
High school digital electronics project board with logic gates counters LEDs and student design notes
CTE electronicsDigital Electronics Projects for High School

Explore high school digital electronics projects using logic gates, truth tables, counters, flip-flops, LEDs, and classroom-ready design routines.

Jul 22, 2026· 5 min read
Breadboard digital logic lesson with labeled inputs and LEDs showing NAND and NOR gate behavior
beginner electronicsNAND and NOR Gates for Beginners

Learn what NAND and NOR gates do, how their truth tables work, and why teachers call them universal gates in beginner digital...

Jul 22, 2026· 4 min read