Technology and Sustainable Development - JSS 3 Note

Technology and Sustainable Development

Subject: Digital Technologies
Class: JSS 3
Term: Third Term
Week: 9
Topic: Technology and Sustainable Development
Duration: 40 Minutes

Learning Objectives

By the end of the lesson, students should be able to:

1. Explain the meaning of technology and sustainable development.
2. Identify ways technology supports sustainable development.
3. Describe the environmental effects of digital technologies.
4. Explain how renewable energy and digital tools can conserve resources.
5. Identify responsible practices for reducing electronic waste and energy consumption.
6. Suggest ways students can use technology to protect the environment.

1. Meaning of Technology

Technology is the application of scientific knowledge, skills and tools to solve problems, perform tasks and make life easier.

Technology includes simple tools and complex systems used in homes, schools, industries, hospitals, farms and businesses.

Examples include computers, mobile phones, solar panels, irrigation systems, medical equipment, the internet and machines used in manufacturing.

2. Meaning of Sustainable Development

Sustainable development is development that meets present needs without preventing future generations from meeting their own needs.

It involves using natural and human resources responsibly so that people can enjoy a good quality of life today while protecting the ability of future generations to meet their needs.

Sustainable development considers three closely connected areas:

• Environmental sustainability: Protecting the environment, reducing pollution and conserving natural resources.
• Economic sustainability: Supporting productive activities, jobs and responsible use of money and materials over time.
• Social sustainability: Promoting well-being, education, fairness, health and access to essential services.

Example: Using solar energy to power a school can reduce dependence on fuel-powered generators, lower some operating costs and provide electricity for learning activities.

3. How Technology Supports Sustainable Development

Technology can help individuals, communities and countries use resources more efficiently and address environmental and social challenges.

A. Sustainable Agriculture

Farmers can use technology to improve food production while reducing waste and unnecessary use of resources.

• Soil sensors can help farmers determine when crops need water.
• Weather information can help farmers plan planting and harvesting.
• Drip irrigation can deliver water closer to plant roots.
• Digital tools can provide information about pests, diseases and farming methods.

B. Renewable Energy

Renewable energy comes from sources that are naturally replenished, such as sunlight, wind and flowing water.

• Solar panels convert sunlight into electricity.
• Wind turbines use wind to generate electricity.
• Hydroelectric systems generate electricity from moving water.
• Energy-monitoring devices help identify unnecessary electricity consumption.

C. Education

Digital technologies can make learning more accessible and reduce some barriers to education.

• Online lessons allow students to access learning materials remotely.
• Digital libraries provide access to electronic books and other educational resources.
• Educational videos and simulations help explain difficult concepts.
• Assistive technologies can support learners with disabilities.

D. Healthcare

Technology supports healthcare through digital medical records, remote consultations, diagnostic equipment and health information systems. These tools can help healthcare workers provide services and manage information more effectively.

E. Transportation

Navigation systems, public transport information and traffic-monitoring tools can help people plan journeys. Electric vehicles and well-managed public transportation can also help reduce some forms of pollution, depending on how electricity is produced and how the systems are used.

F. Waste Management

Digital tools can support waste collection, recycling and the monitoring of waste disposal. Recycling centres may use equipment and information systems to sort materials and track recyclable products.

4. Technology and Environmental Protection

Technology can help people understand environmental problems and take action to protect natural resources.

Examples include:

• Environmental monitoring: Sensors can measure air quality, water quality and other environmental conditions.
• Weather forecasting: Digital systems help predict weather conditions and provide warnings about some hazards.
• Forest monitoring: Satellite images and other digital tools can help identify changes in forests.
• Water conservation: Sensors can detect leaks and help manage water supplies.
• Paper reduction: Electronic documents can reduce the need to print some materials.
• Efficient lighting: LED bulbs and suitable control systems can reduce electricity consumption.

Technology alone cannot solve every environmental problem. Its benefits depend on responsible design, proper use, maintenance and access to the resources needed to operate it.

5. Environmental Effects of Digital Technology

Although digital technologies offer many benefits, their production, use and disposal can affect the environment.

A. Energy Consumption

Computers, mobile phones, internet equipment and data centres use electricity. When electricity comes from fossil fuels, its production can contribute to greenhouse gas emissions.

B. Electronic Waste

Discarded computers, phones, batteries and other electronic equipment can create environmental problems when they are handled improperly. Some components contain substances that can harm people or the environment.

C. Use of Natural Resources

Manufacturing electronic devices requires raw materials, water and energy. Mining and processing these materials can damage habitats and produce pollution if not properly managed.

D. Packaging and Plastic Waste

Electronic devices often come with packaging made from cardboard, plastic and other materials. Poor disposal can increase waste in the environment.

E. Benefits of Extending Device Lifespan

Repairing, upgrading and reusing devices can reduce the demand for new equipment and delay the creation of electronic waste.

Safety warning: Do not burn electronic waste or dismantle batteries and electronic components without appropriate training and equipment. Use responsible collection and recycling services.

6. Green Computing

Green computing is the environmentally responsible use, design, manufacture and disposal of computers and related digital technologies.

The aim is to reduce the environmental impact of computing throughout the life of a device.

Practices of Green Computing

1. Switch off computers and other equipment when they are not needed.
2. Use sleep or power-saving modes when appropriate.
3. Choose energy-efficient devices when purchasing equipment.
4. Repair or upgrade devices where practical instead of replacing them immediately.
5. Print only when necessary and use digital documents where suitable.
6. Reuse devices that are still safe and functional.
7. Send unusable electronics to appropriate collection or recycling facilities.
8. Keep devices in good condition to extend their useful life.

7. Technology and the Circular Economy

A circular economy aims to keep products and materials in use for as long as possible instead of following a pattern of using and discarding them quickly.

Technology can support this approach through repair, refurbishment, reuse and recycling.

Practice	Meaning	Example
Reduce	Use fewer materials and avoid unnecessary consumption.	Buying only the devices a school needs.
Reuse	Use an item again instead of discarding it.	Passing a working computer to another learner.
Repair	Fix a faulty item so it can continue to work.	Replacing a damaged keyboard.
Refurbish	Restore a used device to a useful condition.	Cleaning, testing and upgrading a used laptop.
Recycle	Recover useful materials from discarded products.	Sending obsolete electronics to a suitable recycling facility.

8. Challenges of Using Technology for Sustainable Development

Technology can support sustainable development, but several challenges must be considered.

• High cost: Some renewable energy systems and efficient devices require significant initial investment.
• Limited infrastructure: Poor electricity supply and internet connectivity can restrict access to digital services.
• Digital inequality: Some communities have fewer devices, less reliable internet and fewer opportunities to develop digital skills.
• Electronic waste: Rapid replacement of devices can increase waste.
• Energy demand: Digital systems require electricity and may increase demand if they are not managed efficiently.
• Lack of awareness: People may not know how to conserve energy or dispose of electronics safely.
• Maintenance difficulties: Equipment may become unusable when spare parts, technical support or trained personnel are unavailable.

9. How Students Can Promote Sustainable Development

Students can contribute to a more sustainable future through everyday choices and responsible technology use.

1. Switch off lights, computers and other equipment when they are not needed.
2. Avoid wasting paper, water and electricity.
3. Keep devices in good condition and report faults instead of discarding them unnecessarily.
4. Encourage proper collection and recycling of electronic waste.
5. Use digital resources responsibly and avoid unnecessary printing.
6. Share reliable information about environmental protection.
7. Participate in school cleanliness, recycling and tree-planting activities.
8. Use technology to identify and communicate solutions to local environmental problems.

Class Activity

Activity: Making Our School More Sustainable

In small groups, students should identify three ways their school uses electricity, paper, water or digital equipment.

Each group should then:

1. Identify one form of waste or unnecessary resource use.
2. Suggest a practical technology-based solution.
3. Explain how the solution could benefit the environment.
4. Describe one possible challenge and how the school could address it.

Groups should present their ideas to the class. Examples include switching off unused computers, using digital notes where appropriate, repairing working equipment and establishing a safe electronic-waste collection process.

Summary

Technology supports sustainable development by improving agriculture, education, healthcare, transportation, energy management and environmental monitoring. Sustainable development seeks to meet present needs while protecting the ability of future generations to meet theirs. However, technology also consumes energy and natural resources and can produce electronic waste. Green computing, renewable energy, repair, reuse and responsible recycling help reduce these effects. Students can contribute by conserving resources, maintaining devices and using technology responsibly.

Evaluation Questions

1. Define technology and sustainable development.
2. State the three main areas of sustainable development.
3. Explain four ways technology can support sustainable development.
4. What is renewable energy? Give three examples.
5. State four environmental effects of digital technology.
6. Define green computing and list four green computing practices.
7. Explain the difference between repairing, reusing and recycling a digital device.
8. Identify four challenges to using technology for sustainable development.
9. State five ways students can conserve resources in school.
10. Explain why electronic waste should be handled responsibly.

Assignment

1. Write a short note on the role of technology in protecting the environment.
2. List five ways your household or school can reduce energy consumption.
3. Explain how repairing and reusing computers can support sustainable development.
4. Suggest a simple project your school could undertake to promote environmental sustainability using technology.

Interactive Quiz

Select one answer for each question, then click Submit Quiz to see your score and feedback.

1. What is sustainable development?

Using all available resources immediately Stopping all forms of development Meeting present needs while protecting future generations' ability to meet theirs Replacing every device each year

2. Which of the following is a renewable energy source?

Sunlight Coal Petrol Diesel

3. What is green computing?

Using computers only for games Increasing the brightness of every screen Discarding old computers in open spaces Using and disposing of computing equipment responsibly

4. Which action can help reduce electronic waste?

Burning old computers Repairing a faulty computer when practical Throwing batteries into drains Replacing every device each month

5. Which is an example of environmental sustainability?

Conserving water and reducing pollution Dumping waste into rivers Wasting electricity Burning electronic waste in the open

6. How can digital technology help farmers conserve water?

By leaving taps running By preventing farmers from checking their crops By using sensors to guide irrigation By increasing water leakage

7. What does the digital divide describe?

The difference between two computer screens The process of recycling paper The separation of computer files into folders Differences in access to digital technology and digital skills

8. Which practice can help reduce electricity use in a computer laboratory?

Leaving every computer running overnight Switching off equipment that is not needed Keeping all lights on in empty rooms Charging devices that are already fully charged without need

9. Which practice supports a circular economy?

Discarding every damaged item immediately Buying unnecessary devices regularly Repairing, reusing and recycling products Burning discarded electronic equipment

10. What is the responsible way to handle unusable electronic equipment?

Take it to an appropriate collection or recycling facility Throw it into a river Burn it in the school compound Leave it beside a water source