Food Supply and Security

Overview

In this ninth lesson of Biomes and Food Futures, students investigate how food moves between producers, markets and consumers in Australia and Asia. They use comparative price, origin, availability and food-security data to explain how environmental, social, economic and technological factors shape food supply and demand.

Learning intentions

Students will:

• explain factors affecting food supply and demand in Australia and Asia
• map food flows and identify connections between places
• interpret maps and data to identify spatial patterns of food security
• use geographical evidence to explain differences between places
• evaluate how future changes may affect regional food security

Success criteria

• I can explain factors affecting food supply and demand.
• I can map a food flow using arrows, labels and a key.
• I can identify spatial patterns of food security using geographical evidence.
• I can explain how trade, technology or climate change may change food security.

Curriculum links

• Human wellbeing: explaining how the features and characteristics of places change over time
• Human wellbeing: analysing processes and interactions that transform people, places and environments
• Environmental change and management: assessing approaches to managing and protecting places and environments
• Environmental sustainability: analysing the impact of human activity on the natural world

Lesson structure (60 minutes)

1. 0–8 min · Hook: comparing food access. Teacher displays a comparison of the same food item, such as rice or bananas, in Australia and an Asian country, showing price, country of origin and availability through the comparison hook slides. Students complete a quick think-pair-share: “Why might the same food cost more, come from a different place or be unavailable?”

2. 8–18 min · Direct teaching: supply, demand and security. Teacher uses the key concepts slides to clarify food supply, food demand and food security, including reliable physical and economic access to sufficient, safe and nutritious food. Students annotate definitions and identify one environmental, social, economic and technological factor that could influence food access.

3. 18–33 min · Mapping food flows. Teacher models a food-flow map from farm to processor, exporter, retailer and consumer, then distributes the food supply and security investigation worksheet. In groups of four or five, students use the provided Australia–Asia scenario data to draw arrows showing food movement, label places and transport links, and add notes explaining how climate, land, water, labour, trade and technology affect supply and demand.

4. 33–47 min · Interpreting spatial patterns. Teacher directs students to the food-security maps and data on the food supply and security investigation worksheet and asks groups to compare Australia with selected Asian countries. Students identify two patterns, support each with geographical evidence, and explain at least one difference using the frame: “Food security is higher/lower in ___ because ___, as shown by ___.”

5. 47–56 min · Future food-security challenge. Teacher presents three possible changes using the future scenarios and discussion slides: increased use of agricultural technology, changing trade relationships, or climate-change impacts. Pairs choose one and write a short judgement explaining whether it is likely to improve or worsen food security, who may benefit or be disadvantaged, and what management response could reduce risks. Invite several pairs to share.

6. 56–60 min · Plenary and exit check. Teacher returns to the hook question through the plenary slides. Students complete the final section of the food supply and security investigation worksheet: “One factor affecting food supply or demand is ___; it changes food security by ___.” Collect responses to check understanding before Lesson 10.

Resources

• the Food Supply and Security slide deck
• the food supply and security investigation worksheet
• Projector or interactive display
• World and Asia maps
• Coloured pencils or highlighters
• Student atlases or approved digital mapping tool
• Prepared comparative food-price and availability data
• Food-security maps and simplified data tables
• Group table space for collaborative mapping

Assessment

• Circulate during mapping and questioning; check that students distinguish food flow from food security and use accurate geographical vocabulary.
• Review annotations, map arrows, keys and evidence-based explanations on the worksheet.
• Use the final response as an exit check: students should name a factor and explain its effect, not merely list it.

Differentiation

• Support students with annotated maps, a partially completed food-flow example, simplified data tables and a key-term matching section on the worksheet.
• Provide sentence starters, a word bank and mixed-ability grouping; allow students to explain ideas orally before writing. Read instructions aloud and use high-contrast maps for students with visual or literacy needs.
• EAL/D learners can work with labelled visuals and paired rehearsal of terms such as supply, demand, trade, access and food security.
• Extension students should compare the reliability of two data sources and evaluate which response—technology, trade reform or climate adaptation—is most likely to improve food security for different groups.

Extension

• Students write a short policy recommendation to an Australian or Asian regional government, supported by two data points.
• Students predict how one food flow might change by 2050 and justify the prediction using environmental, economic and technological factors.