Overview
This lesson helps students understand where electrical energy comes from, how it is stored, and how we measure it safely. Students learn the story of electricity from ancient discoveries to modern batteries, then gently explore concepts like voltage and amperage through clear, friendly explanations. They practice using a multimeter to test a battery’s voltage and load, building confidence with electrical tools in a safe, supervised way.
Student Learning Goals
By the end of this lesson students will be able to:
• Explain the idea of stored electrical energy
• Describe voltage as electrical pressure and amperage as flow
• Recognize battery terminals and understand what they represent
• Use a multimeter to measure battery voltage with guidance
• Record results and reflections in their journals
• Practice safe habits when working with electrical tools
Materials Needed
AA batteries (one per student or group)
Digital multimeters
Probes for each multimeter
Journals and pencils
Projector or printed slides
Rubber Balloon
Teacher Preparation Notes
Make sure each multimeter is set up correctly and all probes are undamaged. Do a quick test of your own battery so you know what readings to expect. Have the safety rules ready to review slowly. Students may feel nervous around electricity. Keep your voice calm, steady, and reassuring. Have an extra multimeter ready in case one is accidentally mis‑set.
Safety Notes
We always respect electricity.
There is virtually zero risk of electrical shock when working with one AA battery and the multimeter as long as all instructions in this lesson are followed.
We never touch metal probe tips while testing.
We keep fingers behind the probe guides.
We only measure small DC batteries.
We always respect electricity even at low levels.
We switch the multimeter OFF when not in use.
Warm Up Activity
Ask students:
Have you ever rubbed a balloon on your hair and made it stick to the wall
Explain that they just created static electricity. This helps open the door to the idea that energy can be stored.
Lesson Flow
Step One
Project Demonstration: Static Electricity Balloon Activity
Give each group a balloon. Have students rub the balloon on their shirt or belly to generate static electricity. Then invite a volunteer with long hair to stand still while another student gently brings the balloon close. Students watch how the charged balloon attracts the hair.
Teacher note: This works best on hot dry days and may not work as well in wet humid conditions.
Introduce the idea of stored electrical energy. Use the slides about amber and the ancient discovery of static electricity. Help students imagine holding a piece of amber and watching feathers jump toward it.
Teacher note: This historical moment creates wonder. Lean into that feeling.
Step Two
Connect the idea of stored static electricity to modern batteries. Show the slide about Alessandro Volta and early battery jars. Explain that batteries hold electrons tightly packed together, waiting to move.
Ask students to write in their journals:
Where do you see batteries in your life
Step Three
Explain voltage using the slides. Keep it simple:
Voltage is electrical pressure. It shows how badly the electrons want to move.
Amperage is how many electrons are moving each second.
Teacher note: Students often mix these up. Use gentle comparisons like water pressure and water flow if helpful.
Step Four
Show the safety slide about respecting electricity. Point out that even small currents can be dangerous in the wrong conditions, which is why safe habits matter.
Put on safety glasses and model calm behavior.
Step Five
Introduce the multimeter. Hold it up, show the dial, show the probe connection points. Tell students they will only measure small DC batteries.
Demonstrate how to:
Connect probes to Volt and Ground
Turn the dial to DC Voltage
Start with the 20 volt range
Step Six
Guided practice: Testing battery voltage.
Give each student or group a battery. Let them connect:
Red probe to the positive button
Black probe to the flat negative end
Have them record the reading in their journals.
Teacher note: Move slowly. Celebrate every correct connection. Encourage students to share their results.
Step Seven
Introduce the load test setting on the multimeter. Explain that batteries behave differently when doing work, so this mode lets us see how strong they are under a small load.
Demonstrate first. Then let students test their batteries if appropriate. Ask them to compare voltage reading versus load reading.
Step Eight
Have students write in their journals:
What did your readings tell you about your battery
What surprised you
Teacher Notes for Each Slide
Slide 1 Title: Warm introduction. Explain this is an exciting day working with real tools.
Slides 2 to 4 Amber and static electricity: Build wonder and curiosity.
Slides 5 to 6 First batteries: Connect past to present.
Slides 7 to 14 Voltage and amperage visuals: Move slowly, use simple language.
Slides 15 to 17 Electricity safety: Reinforce calm habits.
Slides 18 to 21 Multimeter rules: Model everything before students try.
Slides 22 to 29 Battery testing steps: Guide students one motion at a time.
Slides 30 to end Load test: Only use on small batteries. Remind students never to test large ones.
Independent or Group Activity
Have each student test two different batteries: one new and one older. Students record both voltage and load readings and then write a short comparison.
Vocabulary and Concepts
Stored energy Energy held inside an object until released
Voltage Electrical pressure pushing electrons forward
Amperage Amount of electrons moving per second
Terminal The ends of a battery where energy flows
Multimeter A tool for measuring electrical information
Static electricity Electrical charge that stays in one place
Wrap Up
Ask students:
What did you discover about your battery
Why do you think makers test batteries before building
Let students share their ideas.
Exit Ticket
Write one sentence describing voltage in your own words.
Or: Draw a picture showing battery terminals.
Quiz
- What is voltage
- What is amperage
- Which terminal on a battery is positive
A. Flat end
B. Button end - Why do we keep our fingers behind the probe guides
- What did your multimeter reading tell you about your battery
Teacher Reflection
Which explanations connected well with students
Were students confident using the multimeter
Did any steps feel rushed
Write notes for next time to support smoother pacing.