Lesson Notes By Weeks and Term v5 - Grade 9
Technology, society and the environment – Week 9 focus
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Technology, society and the environment – Week 9 focus
Download the Lessonotes Mobile South Africa app for faster lesson access on Android and iPhone.
Subject: Technology
Class: Grade 9
Term: 3rd Term
Week: 9
Theme: General lesson support
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This week, we delve into the intricate relationship between technology, society, and the environment. Technology, while offering many benefits, also presents challenges to our society and the environment. It's crucial for us, as future innovators and responsible citizens of South Africa, to understand these interactions to develop and use technology sustainably and ethically. The choices we make today will directly impact our future and the well-being of our communities and natural resources. Think about the impact of load shedding on your access to information and ability to study, or the benefits and drawbacks of mobile money services like eWallet or MTN Money.
2.1 Defining the Key Terms: Technology: The application of scientific knowledge for practical purposes, especially in industry. This encompasses tools, techniques, systems, and processes.
Society: A group of people living together in an ordered community. It includes the structures and relationships within that community.
Environment: The surroundings or conditions in which a person, animal, or plant lives or operates. This includes natural resources, ecosystems, and the climate.
Sustainable Development: Development that meets the needs of the present without compromising the ability of future generations to meet their own needs. It’s about balancing economic growth, social equity, and environmental protection.
Environmental Impact Assessment (EIA): A process that identifies the potential environmental consequences of a proposed project or development. In South Africa, EIAs are legally required for many projects to ensure environmental protection. 2.2 Interdependence of Technology, Society, and the Environment: These three elements are interconnected and influence each other significantly. Technological advancements often lead to societal changes (e.g., increased urbanization due to industrialization). These societal changes, in turn, can put pressure on the environment (e.g., increased waste generation). 2.3 Positive Impacts of Technology: Improved Communication: Mobile phones and the internet connect people and communities, facilitating communication, education, and access to information. In rural South Africa, mobile technology allows farmers to access market prices and weather forecasts.
Increased Efficiency in Industries: Automation and robotics improve productivity and efficiency in agriculture, manufacturing, and other sectors. This can lead to economic growth and job creation.
Improved Healthcare: Medical technologies such as X-rays, MRI scans, and advanced surgical techniques lead to better diagnoses and treatments, improving overall health outcomes.
Sustainable Energy Solutions: Solar panels, wind turbines, and hydroelectric power plants provide renewable energy sources that reduce reliance on fossil fuels and lower carbon emissions. This is especially important in a country like South Africa, which is highly dependent on coal.
Improved Water Management: Technologies for water purification, irrigation, and water conservation help address water scarcity issues, particularly important in drought-prone regions of South Africa. 2.4 Negative Impacts of Technology: Environmental Pollution: Industrial processes and electronic waste contribute to air, water, and soil pollution, harming ecosystems and human health. For example, improper disposal of electronic devices (e-waste) leads to the release of toxic heavy metals.
Resource Depletion: The extraction of raw materials needed for technology production can deplete natural resources and damage ecosystems. Mining for minerals like platinum (found in South Africa) has significant environmental impacts.
Climate Change: Burning fossil fuels to power technologies releases greenhouse gases, contributing to global warming and climate change, which can lead to droughts, floods, and other extreme weather events in South Africa.
Job Displacement: Automation and artificial intelligence can displace workers in some industries, leading to unemployment and economic hardship.
Social Inequality: Access to technology can be unevenly distributed, exacerbating social inequalities. The digital divide in South Africa means that some communities have limited access to the internet and other technologies.
Health Problems: Excessive use of technology can lead to health problems such as eye strain, carpal tunnel syndrome, and addiction. 2.5 Sustainable Technology: Sustainable technology aims to minimize the negative impacts of technology while maximizing its benefits.
This involves: Using renewable resources: Employing materials that can be replenished naturally (e.g., using bamboo instead of plastic).
Reducing waste: Designing products for durability, repairability, and recyclability.
Conserving energy: Developing energy-efficient technologies and promoting energy conservation practices.
Minimizing pollution: Implementing cleaner production processes and reducing emissions.
Promoting social equity: Ensuring that technology benefits all members of society, regardless of their socioeconomic status. 2.6 Environmental Impact Assessments (EIAs): EIAs are crucial tools for evaluating the potential environmental impacts of proposed projects. They help identify potential risks and mitigation measures. In South Africa, EIAs are required for many large-scale projects, such as mining operations, power plants, and infrastructure developments.
Example of EIA in practice: Before building a new coal-fired power station (like Medupi or Kusile), an EIA is required.