Logic Gates Complete Lesson: Slides, Interactive Drill & Worksheet | KS3 Computing

A complete 60-minute lesson on logic gates, ready to teach tomorrow. It’s written so that someone who doesn’t usually teach computing can deliver it from the lesson plan alone.

Lesson outline (60 minutes)

• Do now: a real-life AND problem (a torch, a switch and a flat battery)
• AND, OR and NOT: symbol, rule, truth table and a real-world example for each
• Stretch: XOR
• Logic expressions: brackets, then NOT, then AND, then OR, worked step by step
• Your-turn questions: answers stay hidden until you click
• 19 minutes of independent practice on the self-marking drill
• Exit ticket: name the gate from its truth table

What’s included

• slides.html: 13 slides that open in any browser. Click or press → to reveal each answer. Works with a clicker and on interactive whiteboards.
• slides.pdf: the same slides as a PDF
• lesson-plan.pdf: objectives, curriculum link, key vocabulary, a minute-by-minute plan with what to say on each slide, answers, and the misconceptions to listen for
• drill.html: 12 self-marking questions with feedback on each pupil’s specific mistake
• worksheet.pdf: a paper version of the drill with an answer page, for lessons without computers
• how-to-use.pdf: opening HTML files, showing them on the board, and sharing with pupils through Teams or Google Classroom

Why teachers like it

• Pupils get feedback on their own mistakes, so you’re not answering 30 hands at once.
• No logins, accounts or installs. Nothing is stored or sent, so there’s nothing for GDPR to worry about.
• Every answer is checked by code, so the answer key is right.

National Curriculum KS3: understand simple Boolean logic [for example, AND, OR and NOT] and some of its uses in circuits and programming.

Buying for your department? The school licence covers every teacher in your school.