Seminar focus: defend the investigation under questioning
Ākonga present a final argument, then respond to questions about sampling, representation, measures, and limitations. They finish by revising one claim and explaining which challenge improved their reasoning.
- Seminar move: Short oral defence, peer questions, and written reconsideration
- Seminar outcome: A defended statistical argument and evidence-based reflection
🎯 Learning Intentions
- Present a complete statistical investigation and defend key choices with evidence
- Use peer questions to test the strength of a conclusion
- Reflect on the PPDAC cycle and identify a worthwhile next investigation
🎥 Media Anchor (8 mins)
Video: Effective Presentations
- Which evidence slide best proves your final conclusion?
- What feedback question will improve your next investigation cycle?
1. Evidence Conference (10 mins)
In pairs, students point to one piece of evidence for each PPDAC stage. A missing stage is repaired before presenting; this is a final workshop, not a memory test.
2. Presentations (25 mins)
Students present their findings to the class, a small group, or another authentic audience.
Audience Responsibility: Ask one question about the data or method. (e.g., "Why did you choose a bar graph?")
3. Self-Assessment (10 mins)
Rate your own investigation using the rubric:
- Problem: Is the question clear?
- Plan: Was the method sound?
- Data: Is it precise?
- Analysis: Are graphs accurate?
- Conclusion: Is the answer supported by evidence?
4. Final Whakataukī Reflection (5 mins)
Recall: "He aha te mea nui o te ao? He tangata, he tangata, he tangata."
Discuss: How did your investigation help you understand people better?
(e.g., "I learned that most people in our class worry about climate change, which connects us.")
📋 Teacher Planning Snapshot
Ngā Whāinga Ako — Learning Intentions
The class completes and critiques a full PPDAC cycle, judging the method rather than the answer.
Ngā Paearu Angitū — Success Criteria
- ✅ I can follow one question through the whole PPDAC cycle.
- ✅ I can critique an investigation's method and say what I would change.
Differentiation & Inclusion
Scaffold support: A critique frame aimed at the method. Extension: write the protocol you would hand next year's class.
ELL / ESOL: Support the critique with the stems used across the unit.
Inclusion: Judging your own method harshly is the assessed skill; an honest uncertain conclusion outranks a confident wrong one.
Mātauranga Māori lens: One turn of the PPDAC cycle is what generational monitoring does across years. Ākonga have now completed one turn of it.
Prior knowledge: Students should have basic familiarity with data displays (bar graphs, dot plots). No prior statistical investigation experience required — the PPDAC inquiry cycle provides accessible scaffolding for first-time investigators.
Curriculum alignment
This lesson develops the Level 4 statistical-investigation objective through a real stage of the PPDAC cycle. See the unit curriculum companion for the exact source statement and lesson-to-evidence map.