Constellation Makers

Overview

In this lesson (Lesson 4 of 7), students construct 3D models of selected constellations using straw, clay, and other safe materials. They connect the shapes they have learned to the stories of the stars, and practise clear explanations as they build and test their models.

Learning intentions

• WALT understand how constellations are arranged in patterns and represent them in 3D.
• WALT build a constellation model accurately using chosen materials.
• WALT describe how the constellation’s shape and story fit together.
• WALT work safely and cooperate during a practical task.

Success criteria

• I can place stars (points) and join them into the correct constellation shape.
• I can make a 3D model that shows depth and is stable enough to handle.
• I can explain my constellation story using science words for shape and pattern.
• I can use a checklist to self-check my model and improve it.

Curriculum links

• Science: Investigating in science—using evidence from models and observations to explain ideas.
• Science: Nature of science—communicating findings and using models to represent systems.
• Learning through language (cross-curricular): Using structured talk and sentence starters to explain thinking.
• Key competencies: Thinking (planning/building), Using language/symbols/text (model labels), Participating and contributing (group work).

Lesson structure (60 minutes)

1. 0–5 min: Whanaungatanga + set-up Welcome students, remind them of mana whenua connections (respect for stories and place-based understanding). Show a finished example of a 3D constellation model and ask what makes it a “constellation” (pattern of star points).

2. 5–12 min: Front-load—shape, story, materials Briefly review: a constellation is a pattern of “star-like points” seen from Earth, and stories help people remember patterns. Demonstrate how to make stable “star points” (rolled clay balls or straws as points) and how to connect them (straw lines, clay bridges, or thread). Model safe handling and how to label parts.

3. 12–18 min: Te Reo Māori block activation (pattern words) Teach and practise key phrases for the build: “rangi” (sky), “whetū” (star), “tāhurihuri” (pattern/arrangement idea), “whakaatu” (show). Use short call-and-response with gestures while students point to a constellation diagram.

4. 18–22 min: Planning in groups In groups of 3–5, students choose one constellation they are modelling from the unit’s options. They sketch a quick 2D guide (dots + connections) and agree roles: builder, modeller, labeler, narrator. Teacher checks plans against the constellation shape.

5. 22–45 min: Independent building with check-ins Students construct the 3D model using allocated materials. Teacher circulates for two purposes: (1) constellation accuracy (correct connections and relative order), and (2) model quality (stability, clear “star points,” safe use of tools). Provide a simple self-check checklist: “Points correct, connections correct, label written clearly, story sentence ready.”

6. 45–54 min: Gallery share—explain + improve Groups display models on benches. Each student completes a short “I built…” statement and one question for another group (e.g., “How did you decide where the connections go?”). Students revise a small detail if needed (e.g., re-seat a point, strengthen a joint, add a label).

7. 54–60 min: Wrap-up exit ticket Students answer: “What does your constellation model show about patterns in the sky?” and “One thing you improved after feedback.” Collect as evidence of understanding.

Resources

• Constellation templates/diagrams (paper or board)
• Clay (air-dry or modelling clay) and modelling tools (safe plastic tools)
• Straws (bendy and straight), pipe cleaners, string or thread
• Sticky labels and pens/pencils
• Cardboard base boards, tape, reusable trays
• Safety rules poster (no throwing, careful tool use)
• Sentence starters (for explaining story + shape)
• Self-check checklist sheets
• Timer for timed group rotations and gallery share
• Optional: night-sky images for reference (non-link)

Assessment

• Formative: Teacher checks constellation accuracy and model stability during building.
• Formative: Self-check checklist plus peer question during gallery share.
• Summative-for-this-lesson: Exit ticket describing what the model shows about star patterns and one improvement made.

Differentiation

• Support: Provide pre-cut straw lengths, a “dot-to-dot” connection outline, and a simplified constellation version for students who need it.
• Support (language): Sentence frames for explanation (e.g., “My constellation shows… because…” and “The story says…”).
• SEN: Offer smaller roles (labeler or builder) and allow tactile matching to a template before students connect.
• Extension: Challenge advanced students to add extra detail (e.g., a second angle view, a “story summary” card, or a scale cue like “closer points” vs “further points”).
• EAL: Use visuals, allow first-draft explanations with a partner, and accept oral responses alongside written ones.
• Planning scaffolds: For younger or less confident students, give a labelled constellation card and pre-agreed connection order.

Extension (optional)

• Advanced groups create a “constellation detective” reflection: what information in the diagram helped them decide connections, and how the model changed their understanding of star patterns.