Local Issue Connections

Overview

Students investigate a local environmental issue—stormwater pollution entering a nearby stream, harbour or beach—and create a concept map linking the issue to mathematics, science and social sciences. In a short collaborative session, they use mathematical thinking to identify useful evidence, consider community impacts and propose one realistic action the school could take.

Learning intentions

• WALT identify connections between a local environmental issue and different learning areas.
• WALT use mathematical thinking to describe evidence, quantities or patterns related to an environmental issue.
• WALT explain how science and social sciences help us understand causes, impacts and possible responses.
• WALT collaborate, share ideas and contribute to a practical school action.

Success criteria

• I can place the environmental issue at the centre of a clear concept map.
• I can add accurate links to mathematics, science and social sciences.
• I can explain at least one connection using evidence, a quantity, pattern or comparison.
• I can listen to others and help suggest one achievable school action.

Curriculum links

• Mathematics and Statistics — Mathsteasers: higher-order thinking questions that challenge learners and deepen understanding.
• Mathematics and Statistics — Mathsteasers / Alignment: connecting mathematical challenge with relevant curriculum learning.
• Mathematics and Statistics — Mathsteasers: additional challenge resources for advanced learners.
• New Zealand Curriculum key competencies: thinking; participating and contributing. The activity also supports relating to others and managing self.

Lesson structure (20 minutes)

1. 0–3 min · Local issue hook. Teacher displays a photograph or short scenario about litter and contaminated stormwater reaching a local waterway using the local environmental issue hook. Ask: “Who is affected, what evidence would we need, and what could our school change?” Students silently note one observation and one question, then share with the group.

2. 3–6 min · Model connections. Teacher introduces the concept-map centre: “Stormwater pollution in our local waterway.” Using the concept-map modelling slide, model three branches: mathematics, science and social sciences. Add examples such as counting rubbish items, comparing weekly totals, explaining how pollutants travel through drains, and considering responsibilities of residents, councils and schools. Students suggest one further connection and explain why it belongs in a particular learning area.

3. 6–12 min · Create the concept map. Teacher distributes the local issue concept-map organiser and sets the challenge: include the issue, at least two links to each learning area, one evidence-based mathematical question and one possible school response. Encourage students to draw arrows and label relationships with words such as “causes”, “affects”, “can be measured by” and “could reduce”. Students work as a group of three, taking turns as mapper, evidence-checker and discussion leader; rotate roles after three minutes.

4. 12–16 min · Pair share and critique. Teacher uses the pair-share prompts and asks students to form one pair while the third student presents to both classmates in turn; then rotate so each student presents. Students explain their strongest cross-curricular connection and receive feedback using two prompts: “A clear connection is…” and “A question or improvement is…”.

5. 16–20 min · Choose and justify action. Teacher displays the action-planning and plenary slide. Students agree on one action the school could take, such as auditing litter near drains, reducing single-use packaging, improving bin signage or sharing information about stormwater. They record the action, who would need to participate, and one way mathematics could measure whether it helped. Each student gives a one-sentence justification before handing in the organiser.

Resources

• the local environmental issue hook
• the concept-map modelling slide
• the pair-share prompts
• the action-planning and plenary slide
• the local issue concept-map organiser
• Photograph or teacher-selected local context about a stream, harbour or beach
• Board or shared display
• Pens, pencils and highlighters

Assessment

• Observe whether students make accurate, labelled links between the environmental issue and each learning area. Prompt with: “How could that connection be measured, observed or explained?”
• Listen during pair sharing for use of evidence, mathematical language and respectful participation. Note whether each student contributes and responds to feedback.
• Collect the organiser and check for the required branches, a mathematical question and a justified action. Use the proposed measurement method as an exit check for mathematical thinking.

Differentiation

• Provide the sentence starters “This affects ___ because…”, “We could measure this by…” and “The school could…”. Allow students to begin with a partially completed centre and three branch headings.
• For students needing support with writing or organisation, accept labelled drawings, symbols and brief phrases; scribe ideas or use speech-to-text where appropriate. Read the scenario and instructions aloud.
• Support EAL learners with photographs, gestures and key terms displayed on the slides: pollution, evidence, cause, impact, measure, community and action. Pair each learner with a supportive peer and check understanding before independent mapping.
• Challenge students to identify a possible confounding factor, distinguish correlation from cause, or propose a fair way to compare pollution levels before and after the school action.