Section 2 Lesson Plan¶

Resistors¶

Have the kids go from one side of the room to the other, with nothing in the way. That's a wire.
Put a bunch of desks in the way, then ask them to try it again. You're only allowed to walk.
First time: nothing in the way wire
Second time: one or two desks in the way
Third time: almost completely blocked by desks.
What if the electrons had desks in front of them? It'd be harder to get across!
Kids can't run!

It's like a ferry. The ferry captain won't go across until there's enough people to get on
Any activity that requires them to wait until something is full

Kids line up outside
Have you ever seen when 20 kids take the bus? Have you ever seen when only 5 kids take the bus?
The city provides the water.
So that only so much water goes into the tank, and it's only so hot, it has to be regulated.
A power adapter is like a pipe that comes from the city. A battery is like a storage tank in your backyard.
Whose ever taken a shower, and after awhile, it's gotten cold? Why do you think that happened?
We ran out of hot water!
Why do you think you only have a certain amount of water? In every one of our houses, we have this water heater that can only heat so much.
As long as you only use water at a certain rate, you'll always be able to take a hot shower. But if you use it too fast, it'll get cold.
How many of you have taken a cold shower?
How do you make it warm? We have to heat it up!
So we have this thing called a water heater. You heat it up!