Ken’s planning video — watch first, then use this short reminder to guide the lesson.

1. Get ready: Prepare a small backpack containing a battery, two wires and a bulb. Keep any other simple-circuit components out of sight initially.
2. Begin with the adventure: Enjoy Toby’s Go to Jail! story together. Do not stop to explain the electricity during the first telling.
3. Ask the mystery question: How did the six friends manage to escape? Invite the children to describe the electrical puzzles.
4. Open the backpack: Take out the battery, wires and bulb one at a time. Ask the children whether they can make the bulb light. Do not show a completed circuit first.
5. Investigate together: Replay the adventure, pausing at the electrical puzzles. Let the children try equivalent simple-circuit activities where appropriate.
6. Test conductors and insulators: With a low-voltage circuit and bulb, leave a gap for testing materials. Compare a metal spoon with a wooden spoon. Which completes the circuit?
7. Return to the double-key gate: Ask why the metal keys worked but the wooden and plastic keys did not.
8. Watch Ken’s explanation: Play the new electrical conductivity video, including its reminder about electrical safety.
9. Revisit circuits if helpful: The existing Ken video is retained below as an additional explanation of circuits.
10. Finish: Stop when the children understand that a simple circuit can test whether a material conducts electricity. Return to circuits in later lessons to reinforce the idea.

You're the teacher. Ken is here to help. Choose the activities that suit your class.