Basins and Biomes

Overview

In this sixth lesson of the unit Exploring Landscapes: Australia vs Peru, students compare the Murray–Darling Basin and a Peruvian river-basin rainforest system to understand how place, ecology, and human water use affect environments. Students build from earlier landscape comparisons by focusing on biodiversity, productivity, and environmental management for food and water security.

Learning intentions

• Students will describe the diverse features and characteristics of the Murray–Darling Basin and a Peruvian counterpart.
• Students will recognise how biomes and water availability influence productivity.
• Students will explain how environmental change and human actions affect these basins.
• Students will demonstrate ways to manage and protect a place or environment using evidence.

Success criteria

• I can locate and describe key features of each basin (climate, water sources, ecosystems).
• I can explain how water availability and conditions shape plant and animal life.
• I can identify at least two environmental change factors and at least two responses.
• I can propose a realistic management action and justify it with geographic reasoning.

Curriculum links

• GELS-DFC-01 — Students recognise places and environments (including locating and describing characteristics).
• GELS-PRI-01 — Students describe how places and environments change.
• GELS-MAN-01 — Students demonstrate ways to manage and protect a place or environment.
• GE4-DFC-01 — Students locate the diverse features and describe the characteristics of a range of places and environments (water resources, scarcity, and hazards).

Lesson structure (60 minutes)

1. 0–5 min · Retrieval hook (Think–Pair). Teacher displays two basin silhouettes and asks: “What do biomes need to stay productive—water, temperature, or people?” Students think, pair, then share one reason.

2. 5–15 min · Mini-lesson: Basin snapshots (Direct teach). Teacher introduces short case-study facts: the Murray–Darling Basin’s river system, variable rainfall, water allocation, drought/flood cycles; and the Peruvian rainforest basin’s high rainfall, river networks, and rainforest biodiversity pressures. Students record a simple two-column “Snapshot” table: Water, Ecosystems, Main pressures.

3. 15–28 min · Jigsaw evidence: ecology and productivity (Collaborative learning). Teacher groups students into four “expert” teams using printed data cards (or teacher-created slides without links):

• Team A: Murray–Darling ecology and farming links
• Team B: Murray–Darling environmental change and hazards
• Team C: Peruvian rainforest basin ecology and biodiversity links
• Team D: Peruvian environmental change and pressures (land/water impacts) Students annotate their card using a three-part prompt: “What ecosystem is present? What causes change? How does this affect productivity/people?”

4. 28–40 min · Comparison task: “Same need, different outcomes” (Pairs). Students pair across experts (A with C, B with D). They complete a Venn diagram or two-row comparison:

• How do water conditions shape living things?
• What is similar/different about environmental change?
• What management responses could work in both places, and why? Teacher circulates to check accuracy and use of geographic terms (basin, biome, water availability, hazard, management).

5. 40–52 min · Management challenge: propose and justify (Group work). Teacher gives each group one scenario card with constraints (e.g. “fish habitat plus farm water needs” or “reduce runoff without harming small farms”). Groups choose one management action and produce a 4-sentence response:

1. Action (what will be done)
2. Target (what environment issue will be improved)
3. Evidence link (from today’s data cards)
4. Trade-off (what might be difficult) Students use sentence starters if needed.

6. 52–60 min · Exit ticket: “One claim, two reasons” (Individual assessment). Students write: “The Murray–Darling Basin (or Peruvian basin) is a productive environment when…” then add two reasons and one management response.

Resources

• Basin snapshot handouts for Murray–Darling and the Peruvian counterpart (teacher-created, no links)
• Four sets of evidence cards (ecology, productivity, environmental change, hazards/pressures)
• Comparison graphic organiser (Venn diagram or table)
• Scenario cards for management challenge
• Coloured highlighters/pens for coding evidence
• Exit ticket slips or digital document (no links required)

Assessment

• Formative: teacher observation during jigsaw (correct use of geographic vocabulary and evidence)
• Formative: pair comparison checks (accuracy of similarities/differences)
• Summative-for-today (exit ticket): evaluates whether students make a clear claim with two reasons and include an appropriate management response

Differentiation

• Support for students needing scaffolds: provide sentence starters (“Water availability affects…”, “An environmental change factor is…”, “A management action could…because…”), reduced data-card load (fewer facts), and a word bank (basin, biome, drought, flood, habitat, productivity, scarcity, management).
• Support for EAL learners: allow drawing/labeling on snapshot table; pre-teach key terms with a brief class oral practice; pair with a supportive peer and provide translated glossary if available.
• Extension for advanced learners: ask groups to include a “monitoring plan” (how success would be measured—e.g. water quality, habitat indicators, sustainable water use) and address one potential unintended consequence.
• SEN adjustments: offer roles in group work (reader, summariser, evidence-checker, presenter) and allow oral responses to the scenario plan before writing.

Extension (optional)

• Students who finish early can write a short “risk-and-response” paragraph comparing one hazard from the Murray–Darling with one pressure from the Peruvian basin, explaining why different responses may be needed.