Systems

Part 1: Introducing Universal Theme of Systems

So what could you do with a Universal Theme of Systems? Well, here’s an introduction that will get your students’ brains sweating.

Part 2: Systems: Pull One Thread

A sweater is really one long thread looped a thousand times. Pull the right loose end and the whole thing unravels in seconds. So is a system like that strong or fragile?

Part 3: Systems Are Made up of Other Systems

A clock is a system. So is a rainforest. So is your school. Once you see systems inside systems, you can’t unsee it.

Part 4: Systems: The Traffic Jam

Picture a jam where no one crashed and no one even stopped on purpose — everyone crawls for an hour, then it clears for no reason. Did anyone actually cause this traffic jam?

Part 5: Systems: Watch vs. Forest

A watch stops dead if one tiny gear breaks. A forest can lose a whole species and barely notice. Which is the better-built system — the one where every part matters, or the one where no part is essential?

Part 6: Systems: The Thermostat

A thermostat fights to keep a room the same — open a window and it just cranks the heat to undo you. In a system that pushes back like that, can you ever really change just one thing?

Part 7: Systems: Grandpa’s Axe

Grandpa’s axe broke, so he put on a new head. Years later the handle cracked, so he replaced that too. Now no original piece is left. Is it still the same axe, or a new one?

Part 8: Introducing Systems

Introduce Systems by testing the claim “systems need all of their parts to work.”

Part 9: Systems Can Become Other Systems

Take the back off a chair and it’s a stool. Take away the goals and soccer turns into keep-away. Students pull one part out of a system and name the new thing they made.

Part 10: Systems’ Power Can Be Spread Out or Focused

A traffic jam has no one in charge. An orchestra follows one conductor. Students hunt for both kinds of systems, sort their examples into two columns, and then take on the naming job themselves: what should these two kinds of systems really be called?