1. The Hook: "Meet Ellie the Electron" (3 Minutes)

Goal: Grab Martin's attention and introduce the concept of electrical flow.

What to say/do:

"Martin, did you know that inside our computer, lights, and toys, there are millions of tiny, invisible superheroes running around? They are called Electrons! Let's pretend our finger is a tiny electron named Ellie. Ellie loves to run, but she has one rule: She can only run in a perfect circle!"

Active Interaction: "Martin, can you make a big circle in the air with your arm? Perfect! If there is a gap in your circle (open your arms), Ellie has to stop. She can't jump across empty space! Today, we are going to build a racetrack for Ellie on our screen to light up a real virtual light bulb!"

2. I Do: The Three Magic Parts (4 Minutes)

Goal: Model the concept and introduce the digital tool.

What to do: Open the PhET simulation on the screen. Point to the items in the sidebar.

What to say:

"To build our racetrack, we need exactly three magic parts:

1. The Battery (The Power House): This gives Ellie the energy to push forward.
2. The Wire (The Track): This is the path Ellie runs on.
3. The Light Bulb (The Goal): When Ellie runs through this, it glows brightly!

Watch my screen first. I am going to drag a battery, some wires, and a bulb onto the screen. See how they have dotted circles at the ends? Those are like puzzle pieces that snap together!"

Demonstrate dragging a wire and connecting it to one side of the battery, and then to the bulb. Leave one side disconnected so the bulb does not light up yet.

3. We Do: Building the Track Together (6 Minutes)

Goal: Guide Martin through his first virtual build with real-time feedback.

What to do: Hand the device to Martin (or share control if remote).

Step-by-Step Prompts for Martin:

• "Martin, can you drag one blue battery into the middle of your screen?"
• "Awesome! Now, find a wire and snap it to the left side of your battery."
• "Let's drag a light bulb out. Can you connect the wire to the bottom of the light bulb?"
• "Now, we need one more wire to connect the top of the bulb back to the right side of the battery. Try to snap it in!"

The "Aha!" Moment: When the final connection is made, virtual yellow light rays will burst from the bulb, and blue dots (electrons) will start moving around the loop.

"Look! The light is shining! And look at those little blue dots moving. Those are Ellie and her electron friends running in a circle! We call this a Closed Circuit because the track is completely closed and safe."

4. You Do: The "Broken Bridge" Challenge (5 Minutes)

Goal: Independent exploration, critical thinking, and application.

The Challenge:

"Oh no, Martin! There is a storm coming! Can you tap on one of the connections in your loop, click the little scissors icon to cut it, and pull the wires apart?"

Ask Martin:

• "What happened to the light bulb?" (It turned off!)
• "What happened to the moving blue dots?" (They stopped moving!)
• "This is called an Open Circuit. Why did the electrons stop?" (Because the bridge/path is broken!)

Creative Play: "Can you find a way to fix the broken bridge? Drag in a new wire, or drag a virtual switch into the circuit to turn the light on and off like a light switch in our room!"

5. Conclusion & Recap (2 Minutes)

Goal: Reinforce key takeaways and celebrate success.

Wrap-Up Questions to ask Martin:

• "What does electricity need to travel in to light up a bulb?" (A circle, a loop, or a circuit!)
• "If a wire is broken or cut, do we have an 'open' or 'closed' circuit?" (An open circuit!)

Celebration: "Give yourself a high five! You are now an official Circuit Engineer!"