Ontario Grade 12 CGR4E Living in a Sustainable World (Grade 12, Workplace Preparation)
Chapters: 5
1. A. Geographic Inquiry and Skill Development
A1 Geographic Inquiry · A2 Developing Transferable Skills
- The Scientific Method – The scientific method is the careful way scientists find out how the world works. Observe something, ask a testable question, make a hypothesis (a clear, testable guess), test it with a fair experiment (change one variable, measure one, keep the rest the same), repeat and record data, analyse it, draw a conclusion and share it so others can check. Results that fail the test are useful too: they send you back to a new hypothesis.
- Career Planning: From Knowing Yourself to Your First Job – Career planning has five steps. 1) Know yourself: interests, skills and values. 2) Explore career families and find out the work, study needed, pay and demand. 3) Plan a pathway with SMART goals and a plan B. 4) Search for jobs with a CV, cover letter, digital portfolio and interview practice. 5) Make the move from school to work and keep learning, because careers change over a lifetime.
2. B. Species and Spaces
B1 Endangered Species and Spaces · B2 Human Impacts on Ecosystems · B3 Ecosystem Characteristics
- Biodiversity and its Conservation – Biodiversity is the variety of life at three levels: genetic, species and ecological. It is highest near the equator and grows with area (log S = log C + Z log A). Every species matters, like rivets on a plane. We are losing species fast because of the 'evil quartet': habitat loss and fragmentation, over-exploitation, alien species invasions and co-extinction. The IUCN Red List (Red Data Book) ranks species from Least Concern to Extinct. We protect life in situ (hotspots, national parks, sanctuaries, biosphere reserves, sacred groves, Ramsar wetlands) and ex situ (zoos, botanical gardens, seed and gene banks).
- Biodiversity and the Effect of Human Activity on Ecosystems – Biodiversity is the variety of all the different species of organisms on Earth or in one ecosystem. High biodiversity makes an ecosystem stable, because species depend on each other for food, shelter and a steady physical environment, and it gives people food, medicines and clean air and water. A growing human population uses more resources and makes more waste. Pollution of water, land and air, land use for building, farming, quarrying and landfill, peat removal, deforestation and global warming all reduce biodiversity. We can protect it with breeding programmes, restoring habitats, hedgerows and field margins, reducing deforestation and carbon dioxide emissions, and recycling instead of dumping waste.
- Ecosystem: Structure, Productivity, Energy Flow and Pyramids – An ecosystem is a working unit of nature where living things (biotic) and non-living things (abiotic) interact. Plants make food at a rate called productivity: gross (GPP) minus respiration gives net (NPP = GPP − R). Dead matter is broken down in five steps: fragmentation, leaching, catabolism, humification and mineralisation. Energy enters as sunlight, flows one way through trophic levels and only about 10% passes on each time. Ecological pyramids of number, biomass and energy show this; number and biomass pyramids can be inverted, but the energy pyramid is always upright.
3. C. Sustainability of Natural Resources
C1 Strategies and Stewardship Initiatives · C2 Resource Development and Impacts · C3 Distribution and Use of Natural Resources
- Natural Resource Management: Using Nature Without Using It Up – Natural resources are things from nature that people use: water, soil, forests, fish, minerals and energy. Some are renewable stocks, some are non-renewable, and some are flows such as sunlight. They are spread unevenly, so some places have surplus and others shortage. Developing a resource brings jobs and income but also costs to land, water, air and people. Good management keeps use within sustainable yield, using tools like protected areas, quotas, recycling, pricing and community stewardship.
4. D. Ecosystems and Human Activity
D1 Protecting the Natural Environment · D2 Impacts of Human Activities · D3 Ecological Processes
- Environmental Stewardship: Caring for the Planet as We Use Technology – Environmental stewardship means using the Earth's resources carefully so they last, and fixing harm where we can. Every product, from a phone to a hospital machine, has a life cycle: raw materials, making, transport, use and end of life. Each stage uses energy and makes waste. Good stewards keep products longer, choose efficient machines, follow the waste hierarchy (refuse, reduce, reuse, recycle, then dispose), send e-waste to proper recyclers and support laws and company practices that protect nature. Technology can harm the environment, but it can also help: solar panels, LEDs and smart sensors cut waste.
- Biodiversity and the Effect of Human Activity on Ecosystems – Biodiversity is the variety of all the different species of organisms on Earth or in one ecosystem. High biodiversity makes an ecosystem stable, because species depend on each other for food, shelter and a steady physical environment, and it gives people food, medicines and clean air and water. A growing human population uses more resources and makes more waste. Pollution of water, land and air, land use for building, farming, quarrying and landfill, peat removal, deforestation and global warming all reduce biodiversity. We can protect it with breeding programmes, restoring habitats, hedgerows and field margins, reducing deforestation and carbon dioxide emissions, and recycling instead of dumping waste.
- Ecosystem: Structure, Productivity, Energy Flow and Pyramids – An ecosystem is a working unit of nature where living things (biotic) and non-living things (abiotic) interact. Plants make food at a rate called productivity: gross (GPP) minus respiration gives net (NPP = GPP − R). Dead matter is broken down in five steps: fragmentation, leaching, catabolism, humification and mineralisation. Energy enters as sunlight, flows one way through trophic levels and only about 10% passes on each time. Ecological pyramids of number, biomass and energy show this; number and biomass pyramids can be inverted, but the energy pyramid is always upright.
5. E. Community Action
E1 Working Together · E2 Ecological Footprints · E3 Community Infrastructure
- Environmental Stewardship: Caring for the Planet as We Use Technology – Environmental stewardship means using the Earth's resources carefully so they last, and fixing harm where we can. Every product, from a phone to a hospital machine, has a life cycle: raw materials, making, transport, use and end of life. Each stage uses energy and makes waste. Good stewards keep products longer, choose efficient machines, follow the waste hierarchy (refuse, reduce, reuse, recycle, then dispose), send e-waste to proper recyclers and support laws and company practices that protect nature. Technology can harm the environment, but it can also help: solar panels, LEDs and smart sensors cut waste.