Management Solutions

Overview

In this seventh lesson of the nine-lesson unit Biodiversity on New Zealand Farms, students evaluate practical primary-production practices that can reduce biodiversity loss and support recovery. They apply knowledge about human impacts on ecosystems to compare solutions, considering environmental benefits alongside economic and practical trade-offs.

Learning intentions

• WALT evaluate management practices that reduce biodiversity loss and improve biodiversity.
• WALT explain how a farming practice can influence organisms, habitats and ecosystem stability.
• WALT consider trade-offs when making environmental decisions.
• WALT use evidence and criteria to justify a recommendation.

Success criteria

• I can describe a management practice used on or near a farm.
• I can link the practice to a biodiversity outcome.
• I can identify one possible trade-off.
• I can use evidence to recommend or compare a solution.

Curriculum links

• Biological Science — interpreting data to evaluate how human activity influences ecosystem stability and biodiversity.
• Biological Science — recognising that agriculture and other human activities can cause habitat destruction, pollution and climate-related impacts that threaten biodiversity.
• Science capabilities — interpreting evidence, evaluating solutions and communicating scientific explanations.
• Key competencies — thinking, managing self, relating to others, and participating and contributing.

Lesson structure (45 minutes)

1. 0–5 min · Hook and retrieval. Display a split image of a stream beside a farm: one side has fenced native vegetation and clear water, the other has bare banks and muddy runoff. Use the hook and retrieval slides to ask, “Which farm environment is likely to support more biodiversity, and what evidence would we look for?” Students silently write one observation and one question, then share with a partner. Invite two or three responses and connect them to previous learning about farming impacts on ecosystems.

2. 5–12 min · Direct teaching. Use the management solutions teaching slides to introduce five solution categories: protecting native vegetation, managing waterways, reducing erosion and pollution, providing shelter or shade, and monitoring to guide decisions. Model one cause-and-effect chain, for example: “Fencing a stream → less stock access and bank damage → clearer water and more aquatic habitat → greater biodiversity.” Clarify that a practice may have benefits and costs, and that monitoring provides evidence for adapting decisions. Students copy one model chain or annotate the corresponding section of the biodiversity management solutions worksheet.

3. 12–25 min · Solution analysis. Give pairs a different farm-management scenario on the biodiversity management solutions worksheet. Scenarios include riparian planting, stock exclusion from waterways, contour planting or ground cover, shelterbelts and shade trees, and repeated monitoring of species or water quality. Students identify the practice, the biodiversity problem it addresses, the likely outcome, and one trade-off. They represent the link using a visual cause-and-effect organiser. Encourage students to distinguish a biodiversity outcome from a production outcome, such as improved habitat versus reduced grazing area.

4. 25–34 min · Evidence-based comparison. Direct pairs to complete the comparison table on the biodiversity management solutions worksheet. They rate their solution against environmental benefit, economic cost and practical feasibility using a three-point scale, explaining each rating with evidence from the scenario. Circulate and conference with groups: ask, “Which organism or habitat benefits?” “What might the farmer need to change?” and “How could monitoring show whether the practice is working?” Students prepare a one-minute recommendation in a format of their choice: written paragraph, annotated diagram, oral explanation or brief digital response.

5. 34–41 min · Recommendations carousel. Use the discussion and presentation slides to display the listening prompts. Pairs present to another pair, which records one strength, one question and one possible trade-off. After two rounds, ask the class whether one solution is best in every farming context. Students compare recommendations and explain why local conditions, costs, time and type of production may affect the decision.

6. 41–45 min · Plenary and exit check. Show the final prompt on the plenary slide: “A farm wants to improve biodiversity without stopping food production. What should it do first, and how could it check the result?” Students complete the final three questions on the biodiversity management solutions worksheet: name a practice, link it to a biodiversity outcome, and identify a trade-off. Collect responses to identify misconceptions before the next lesson.

Resources

• the biodiversity management solutions slide deck
• the biodiversity management solutions worksheet
• Projector or interactive display
• Pens, pencils and highlighters
• Optional devices for students choosing a digital presentation format
• Accessible digital text and text-to-speech tools
• Images of contrasting farm environments

Assessment

• Listen to pair explanations during the cause-and-effect task, checking that students connect a management practice to a specific habitat, organism or biodiversity outcome.
• Use questioning and conferencing to assess whether students understand trade-offs rather than describing only benefits.
• Review the worksheet and exit responses for accurate practice–outcome links, realistic trade-offs and evidence-based recommendations.

Differentiation

• Provide solution scenarios and worksheet text at varied reading levels, with short paragraphs, clear headings and key information highlighted.
• Offer a visual cause-and-effect organiser, word banks and sentence starters: “This practice reduces…”, “As a result…”, and “One trade-off could be…”.
• Allow students to present orally, through an annotated diagram, in writing or digitally. Provide accessible digital text, text-to-speech, enlarged print and dyslexia-friendly sans-serif formatting with generous spacing.
• Conference with students who need support, chunking the task into practice, outcome and trade-off. Pair students strategically and read scenarios aloud where useful.

Extension

• Rank the five solution categories against environmental benefit, economic impact and practical feasibility.
• Defend the ranking in a short written or oral argument, explaining why the best solution may differ between farms.
• Propose one monitoring measure that would provide evidence of success over time.