Fiber Optic Cables: Sending Data with Light
Nov 2, 2026 · About 30–40 minutes
Topic: Computer networks
GRID & SILICON LESSONS
Real stories. Better questions about AI.
Free weekly lessons about the technology behind AI. Students, teachers and parents can use each lesson in about 30–40 minutes, with a web lesson, a printable student handout and separate teacher notes. No AI account or device is needed for the activities.
Short sections, clear steps and flexible ways to answer support different reading and processing needs. Use the adaptations alongside each student’s learning plan.
This week’s lesson
Fiber Optic Cables: Sending Data with Light
Nov 2, 2026 · Computer networks
Follow lesson numbers for the suggested order. New lessons are added on Mondays.
Browse the lesson library
6 lessons available
Modular Data Centers: Build, Test, Connect
Oct 26, 2026 · About 30–40 min
Topic: Data center projects
Gas Turbines: From Hot Gas to Electricity
Oct 23, 2026 · About 30–40 min
Topic: Communities
Fuel Cells: Making Electricity Through Chemistry
Oct 23, 2026 · About 30–40 min
Topic: Energy
Battery Storage: Power Now, Energy for Later
Oct 23, 2026 · About 30–40 min
Topic: Electricity
Liquid Cooling: How AI Chips Stay Cool
Oct 23, 2026 · About 30–40 min
Topic: Chips and cooling
How to use these lessons
- Preview the story and teacher notes. Choose the adaptations your group needs.
- Print the student handout and teacher sheet separately, or read on screen.
- Read the key words and story in short chunks. Pause for questions.
- Use the activity, then check understanding in writing, aloud or with a partner.
- Discuss what the source supports and what it leaves unknown. Use the optional extension if time allows.
For shorter explanations of the same news, visit the separate Learn section. Find shared definitions in the glossary. Follow the lessons RSS feed.