Year 12 Geography lesson plans

- Explain the main processes that shape urban places. - Analyse the challenges facing large cities. - Evaluate planning responses to urban challenges. Success criteria: - I can define and give examples of suburbanisation, urban consolidation and gentrification. - I can explain the urban heat island effect. - I can evaluate a planning strategy using economic, social and environmental criteria.

- Notebook - A street directory or online map of your nearest city - Graph paper

Introduce today's words: - suburbanisation: The outward movement of people and activities from the city centre to suburbs. - urban consolidation: Increasing housing density within existing urban areas, for example through apartments and infill. - gentrification: The renewal of older, lower-income neighbourhoods by wealthier newcomers, often raising property values and displacing existing residents. - urban heat island: When urban areas are significantly warmer than surrounding rural areas due to hard surfaces and lack of vegetation. - CBD: Central business district: the commercial heart of a city. - transit-oriented development: Planning that concentrates housing and services around public transport stations. Ask your child what they already know about urban places and urban processes.

Urban places are shaped by interacting economic, social, political and environmental processes. Suburbanisation accelerated in Australian cities after World War II as car ownership grew and people sought detached houses with backyards. This produced low-density sprawl that is expensive to service with infrastructure and public transport. Urban consolidation aims to accommodate growth within existing urban areas through apartments, townhouses and infill development. It can make better use of infrastructure but may face local opposition and pressure on services. Gentrification occurs when wealthier residents move into older, lower-income neighbourhoods, often near the CBD. It can revitalise areas but may displace long-term and lower-income residents as rents rise. Inner-city suburbs in several Australian capitals have gentrified since the 1970s. The urban heat island effect makes cities warmer than surrounding areas because concrete, asphalt and roofs absorb heat, and there is less vegetation. Western Sydney, for example, experiences more extreme heat than coastal suburbs. Responses include tree planting, green roofs and lighter-coloured surfaces. Other challenges include housing affordability, traffic congestion, social inequality and adapting to climate change. Responses include transit-oriented development, investment in public transport, affordable housing policies and protecting green space. Australian cities are built on the Countries of First Nations peoples, and urban planning increasingly involves Traditional Owners, for example in naming places, caring for waterways and designing public spaces.

Identifying a process Old warehouses near a CBD are converted to apartments and cafés; rents rise and some long-term residents move out. Which process is this? Step 1: Renewal of an older area near the centre. Step 2: Wealthier newcomers arrive and prices rise. Step 3: Existing residents are displaced. Answer: Gentrification. Evaluating a strategy Evaluate urban consolidation as a response to population growth. Step 1: Environmental: reduces sprawl onto farmland and bushland; supports public transport. Step 2: Economic: uses existing infrastructure more efficiently; but upgrades may be needed. Step 3: Social: more housing choice, but may raise local concerns about congestion, overshadowing and character. Step 4: Judgement: effective if accompanied by investment in services and green space. Answer: A sustainable strategy overall, provided services and quality design keep pace.

1. What is urban consolidation? (a) Expanding cities outwards (b) Increasing housing density within existing urban areas (c) Moving people to rural areas (d) Closing city centres 2. Which is a likely negative effect of gentrification? (a) Displacement of lower-income residents (b) Lower rents (c) Fewer cafés (d) Less investment 3. What causes the urban heat island effect? (a) More trees in cities (b) Cooler roads (c) Hard surfaces absorbing heat and less vegetation (d) Higher altitude 4. What drove rapid suburbanisation in Australian cities after World War II? (a) Decline in car ownership (b) Closure of suburbs (c) Lower population (d) Growing car ownership and demand for detached houses

5. Which is a response to the urban heat island effect? (a) Planting street trees (b) Paving parks (c) Removing green roofs (d) Using darker roofs 6. What does the abbreviation CBD stand for? Central business ____. 7. The outward movement of people from the city centre to the suburbs is called ____. 8. A suburb's population rose from 12,000 to 15,000. What was the percentage increase?

- Can you define and give examples of suburbanisation, urban consolidation and gentrification? - Can you explain the urban heat island effect? - Can you evaluate a planning strategy using economic, social and environmental criteria? - What was the trickiest part today?

1. Increasing housing density within existing urban areas — Consolidation increases density within existing areas. 2. Displacement of lower-income residents — Rising costs can push out existing residents. 3. Hard surfaces absorbing heat and less vegetation — Hard surfaces and fewer plants increase urban temperatures. 4. Growing car ownership and demand for detached houses — Cars and housing preferences drove suburban growth. 5. Planting street trees — Trees provide shade and cooling. 6. district — CBD stands for central business district. 7. suburbanisation — Suburbanisation spreads cities outwards. 8. 25 — (15,000 − 12,000) ÷ 12,000 × 100 = 25%.

Recap the success criteria together. Watch for these common misconceptions: - Gentrification is not simply 'improvement'; it has winners and losers. - Higher density does not necessarily mean lower liveability; design, services and green space matter.

- Map land use along a transect from a CBD to the urban fringe. - Compare an Australian city with a megacity in Asia or Africa on three urban challenges. - Write a policy brief recommending responses to housing affordability in your nearest city.

- Revisit urban places and urban processes tomorrow with two or three quick questions from memory. - Try the online practice check for this topic and look at any questions that need another go.

- Visit or virtually explore different parts of a city and compare housing, transport and green space. - Check which urban case studies your state or territory course requires. - Look for local council and Traditional Owner collaborations in urban design, such as dual naming or Country-centred design projects.