Food Storage Innovations

Overview

This is the second of two lessons in the unit Food Storage Through Ages. Students revisit their previous findings, sort them using a PZ Thinking Routine, and develop deeper questions about how innovations affect food safety and fairness. The discussion links traditional knowledge (including pōhā) with modern practices, then leads into small advocacy planning.

Learning intentions

• WALT organise evidence about food storage innovations from our previous learning.
• WALT identify similarities and differences between traditional and modern food storage methods and explain likely impacts.
• WALT develop further research questions about food safety and the reasons some communities may have fewer storage options.
• WALT plan an awareness message or advocacy project about safe, equitable food storage.

Success criteria

• I can group my notes into clear categories and use evidence to support statements.
• I can compare at least two storage methods and describe how they affect safety, shelf life, or access.
• I can ask a strong “next question” that helps us investigate deeper causes or effects.
• I can contribute to an advocacy plan that includes a key message, audience, and action.

Curriculum links

• Social sciences, History: Investigating how people lived in different times and how changing practices affect daily life.
• Social sciences, Science (as part of inquiry): using evidence to explain impacts of innovations on wellbeing and safe practices.
• Social sciences, Economic understandings: considering how access to resources can differ and what fairness looks like in real life.
• NZ Curriculum key competencies: Thinking (making connections and posing questions), Relating to others (listening and contributing), Participating and contributing (taking action through campaigns).

Lesson structure (45 minutes)

1. 0–5 min · Starter: Revisit and recall. Teacher displays the unit question: “How have people tried to keep food safe and available over time?” Students retrieve their notes from Lesson 1 and complete a quick “thumb check” for what they found most interesting.

2. 5–12 min · PZ Thinking Routine setup (Parts, Purposes, Questions). Teacher explains the routine:

• Parts: what storage methods/ideas did we find?
• Purposes: what are they trying to achieve (e.g., safety, longer lasting food, keeping flavour)?
• Questions: what do we still need to know? Students work in pairs to add at least 3 “parts”, 2 “purposes” for each part, and 2 “questions” to a shared template (paper or digital).

3. 12–22 min · Small-group sorting and evidence checks. Teacher circulates with a focus on evidence: “What in your notes makes you think that?” Students move from pairs to small groups (3–4). They combine their templates into one PZ chart and highlight the strongest evidence for each claim. Teacher prompts a balance of traditional and modern examples.

4. 22–32 min · Whole-class discussion: implications and equity. Teacher uses guiding questions:

• “What changes when communities shift from traditional methods to modern systems?”
• “What risks do people face if food is not stored safely?”
• “Who benefits from innovations, and who might be left out?” Teacher includes a respectful reference to Māori knowledge such as pōhā, focusing on how traditional approaches relate to food preservation and cultural practice. Students contribute by connecting evidence to safety and access.

5. 32–40 min · Micro-planning: advocacy campaign corner. Teacher explains the task: In groups, students create a short awareness plan (a mini poster script or 30-second pitch). Each group must include:

• One key message about safe storage (based on evidence)
• One fairness/equity statement (who needs support and why)
• One action idea (what students/community can do) Students complete a planning sheet with sentences and bullet points.

6. 40–45 min · Share-outs and exit ticket. Teacher selects 2–3 groups to share their key message and action. Students complete an exit ticket: “One thing I now understand about food storage is…; One question I still have is…”

Resources

• Student notes from Lesson 1 (printed or in a workbook/folder)
• PZ Thinking Routine templates (Parts/Purposes/Questions) for individuals and one group copy
• Highlighters or sticky notes for sorting categories
• Planning sheet for awareness campaign (key message, equity statement, action idea)
• Group chart paper or digital slideshow template
• Teacher display prompts and discussion sentence stems:
• “Our evidence shows…”
• “This method is intended to…”
• “A fairness issue could be…”

Assessment

• Formative: Teacher observes pair and group PZ work for evidence-based thinking and clarity of categories.
• Formative: During discussion, teacher listens for comparisons between traditional and modern methods and prompts students to justify with their notes.
• Summative for this lesson (short): Exit ticket checks understanding and whether students can pose a meaningful next question.

Differentiation

• Support: Provide sentence starters for PZ sections (e.g., “One purpose is…”, “We still wonder…”). Offer a word bank (store, preserve, safety, shelf life, access, fairness).
• Support: For students needing structure, give a partially completed PZ example with one method already mapped to purposes and a sample question.
• Extension: Challenge groups to include cause-and-effect reasoning (e.g., “If temperature control fails, then…”), and to propose an additional evidence source they could investigate next lesson.
• EAL/SEN: Allow oral contribution with teacher scribing to ensure every student’s ideas appear in the group plan; use visual prompts and manageable sentence frames.

Extension (optional)

Skip (not requested).