👩‍🏫 Teacher’s Guide

Objective
Students will build and explain a simple series circuit using a battery, wires, and a bulb.

Vocabulary
circuit, series, switch, insulation, current, terminal

Teaching Notes

• Start with a quick demo or model to visualize the concept.
• Pre-teach key vocabulary with gestures or sketches.
• Prompt students to predict, observe, and explain in full sentences.
• Check for understanding using either/or and short-answer prompts.

🧒 Student Worksheet

Concept and Helping Material

Definition. A circuit must be closed for current to flow; a switch can open or close the path to control a bulb.
Helping ideas and samples:

• Try a quick sort, draw-and-label, or compare-and-contrast.
• Name one place you see this idea at home or at school.
• Safety: follow teacher directions and handle materials carefully.

Vocabulary and Definition

• — a complete path for electric current
• — components connected one after another in a single path
• — device that opens or closes a circuit
• — covering that protects and prevents unwanted current
• — the flow of electric charge
• — connection point on a battery or component

Words to Learn

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Sentences to Fill In

1. A complete path for charges is a __.
2. A line of parts in one path is a __ circuit.
3. A device that opens or closes the path is a __.
4. Plastic wire coating is called __.
5. Points on a battery where wires connect are __.

Hands-On Experiment or Activities

What You Need: simple classroom items.
What You Do: Build a series circuit with a battery, wires, and a bulb; add a paperclip switch to open and close the circuit.
Think and Talk: What changed? What stayed the same?

Reflection

• Why didn’t the bulb light when the circuit was open?
• How could you add a second bulb and predict what happens?