Activity Introduction

Quick summary: This lesson is part of a unit that explores how electricity and processed materials combine to power mobile phones. In this lesson, students use wires, batteries and light bulbs to learn what circuits are and how they work. Students will also learn how to read a circuit diagram, and use this information to find out how circuits and batteries power mobile phones.

Learning intentions:

  • Students understand what a circuit is, how it works and how to draw a circuit diagram
  • Students understand the basics of how electricity is used in a mobile phone circuit and battery
  • Students understand that electricity travels around circuits in a current and that the circuit has to be complete for the current to flow
  • Students understand how a battery stores electrical energy and how it works
  • Students understand how circuits are used to power mobile phones

21st century skills: 

Digital LiteracyEthical UnderstandingGlobal CitizenshipProblem SolvingTeam Work

 

 

 

 

Australian Curriculum Mapping

Content descriptions: 

Year 5 & 6 – Design and Technology

  • Investigate how electrical energy can control movement, sound or light in a designed product or system (ACTDEK020)
  • Investigate characteristics and properties of a range of materials, systems, components, tools and equipment and evaluate the impact of their use (ACTDEK023)

Year 6 – Science (Chemical and Physical)

  • Changes to materials can be reversible or irreversible (ACSSU095)
  • Electrical energy can be transferred and transformed in electrical circuits and can be generated from a range of sources (ACSSU097)

Syllabus outcomes: ST3-6PW, ST3-7PW, ST3-13MWST3-12MW, ST3-6PW

General capabilities: Information and Communication Technology (ICT) Capability, Critical and Creative Thinking, Ethical Understanding.

Cross-curriculum priority: Sustainability.

Relevant parts of Year 5&6 achievement standards:

Year 5 & 6 – Design and Technology
Students critically examine technologies − materials, systems, components, tools and equipment − that are used regularly in the home and in local, national, regional or global communities, with consideration of society, ethics and social and environmental sustainability factors.

Year 6 – Science
They learn about transfer and transformations of electricity, and continue to develop an understanding of energy flows through systems.

Topic: Sustainability, Energy, STEM/STEAM. 

Unit of work: MobileMuster – Hands-on Mobile Phone Recycling – Years 3-6

Time required: 80 mins.

Level of teacher scaffolding: Medium – facilitate class discussion, support students in circuit building. 

Resources required:

  • Student Worksheets – one copy per student
  • Device capable of presenting a video to the class
  • The Parts Of A Phone sheet ready to project for the class
  • Enough paper, pens and pencils for each group
  • Minimum three lights (LED or similar), six alligator clip wires, one battery holder and a battery between each group of four students
  • Enough deconstructed old mobile phones for groups of four students to have one each OR a class set of Parts Of A Phone

Note: LED lights have positive and negative charged points. Students will need support getting their ends right! If wires are attached incorrectly, the LED lights will break, so you will likely need several spares.

Note: If you choose to collect your own phones follow these instructions to deconstruct, How to Take Apart a Phone.

Note: Here are some examples of the electronic equipment in this lesson and where to buy them:

(https://au.element14.com/broadcom-limited/hlmp-d150/led-5mm-red-3mcd-637nm/dp/1003231
(https://au.element14.com/pro-power/28-12559/battery-sizes-accepted-aa/dp/2783447 )
(https://au.element14.com/adafruit/1008/test-connector-type-a-alligator/dp/2419155)

Keywords: Mobile Muster, Energy, electricity, current, circuit, battery, electrodes, electrolyte, circuit diagram, mobile phone, STEM/STEAM.

Cool Australia’s curriculum team continually reviews and refines our resources to be in line with changes to the Australian Curriculum.

Worksheets

Teacher Worksheet

Teacher Preparation

Learning intentions: Students will ...

  • ... understand what a circuit is, how it works and how to draw a circuit diagram
  • ... understand the basics of how electricity is used in a mobile phone circuit and battery
  • ... understand that electricity travels around circuits in a current and that the circuit has to be complete for the current to flow
  • ... understand how a battery stores electrical energy and how it works
  • ... understand how circuits are used to power mobile phones.

Success criteria: Students can …

  • … recognise that mobile phones use batteries and circuits to work
  • … read a circuit diagram and identify its symbols
  • … draw a circuit diagram
  • … create circuits using wires, batteries and LED lights.

Teacher content information: Mobile phones and all electronics use energy, but what is energy? We hear about it all the time, but it's often not well understood. In science, energy is the capacity of a physical system to do work. Put more sim

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Student Worksheet

Thought Starter: When recycled, the metal in your phone's circuits can be remade into things like jewellery, electronics or coins.  

Symbol Component
___ Wire
-0- Light bulb
-| |- Battery
_.⁄._ Open switch (off)
_._._ Closed switch (on)

Draw your circuits here using the symbols above: 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reflection 

  • What is needed to make a circuit work?

 

  • What how are the circuits in a phone similar to the ones you made?

 

  • What how are the circuits in a phone different to the ones you made 
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