Lesson overview

GROW · Science · Week 9B · Do

Spherical Bodies: World Shape Lab

Sequence outcome: Describe the Sun, Earth and Moon as approximately spherical bodies.

🎯 Learning objective: I can collect fair comparison observations and combine them with real space evidence to describe the Sun, Earth and Moon as approximately spherical.

✅ Success criteria

Observe a disc and sphere from the same three viewpoints.
Record similarities and differences without changing the claim to fit a guess.
Combine model and real space evidence in a conclusion with one honest limitation.

Arrival · retrieve last lessonStarter · create the need to knowI Do · picture firstWe Do · everyone commitsI Do 2 · connect the second ideaWe Do 2 · interactive labIndependent · evidence of learningExit ticket · response becomes the next step

🧪 World Shape Lab: which observations survive a change of viewpoint?⏱ 40 minutes🔁 Live Lundy loop↺ Retry without penalty

🛡 SPACE

🗣 VOICE

👂 AUDIENCE

⚙ INFLUENCE

SPACE available · VOICE waiting · AUDIENCE waiting · INFLUENCE waiting

⏱ 3 min

🚪 Arrival · retrieve last lesson

Retrieve only what has already been taught

In Explore, several viewpoints separated a flat disc from a sphere; one circular view was insufficient.
Prior week: point to or describe one useful model.
Older learning: what makes an observation useful as evidence?
Lead-in: what do you notice in today’s first picture?

New to this class, absent, or not sure? Everything needed is in the retrieval box above. Read it, point to it or ask a familiar adult to read it exactly.

◆ Supported

Last lesson: point to the disc and the sphere.
Last lesson: choose the object that looks like a line edge-on.
Last lesson: name the curved body used in the day-night model.
Lead-in: put front, quarter and edge view cards in order.

▲ Standard

Last lesson: why was one circular view insufficient?
Last lesson: what happened to the disc outline as it turned?
Last lesson: how did Earth's curved surface affect light and darkness?
Lead-in: what must stay the same for a fair shape comparison?

★ Stretch

Last lesson: state the observation that showed the clearest difference.
Last lesson: explain the word approximately in our scientific description.
Last lesson: connect spherical shape to the curved day-night boundary.
Lead-in: design a record that separates observation from conclusion.

Equivalent response routes

☝ point / choose🗣 say / sign🧩 demonstrate⌨ type / exact scribe↺ re-attempt

🔊 Read-aloud route: a familiar adult may read the task exactly while the text remains visible. No device voice or media permission is required.

🛡 SPACE

🗣 VOICE

👂 AUDIENCE

⚙ INFLUENCE

SPACE available · VOICE waiting · AUDIENCE waiting · INFLUENCE waiting

⏱ 3 min

🌱 Starter · create the need to know

Which result would most strongly challenge a flat-disc model? Commit before seeing the method.

LOCAL VISUAL HOOK · FRAME 1

Observation 1: both look round from the front.

Same distance, same view, same result.

LOCAL VISUAL HOOK · FRAME 2

Observation 2: after the same quarter turn, one looks oval and one stays round.

A fair comparison: the same turn for both.

LOCAL VISUAL HOOK · FRAME 3

Observation 3: from the edge, one is a thin line and one stays round.

Record it. Then add real space evidence.

Commit one first idea. Predictions are held, not marked. Pointing, selecting, saying or signing all count.

Choose one idea. The lesson will test it; nothing is scored or saved.

🛡 SPACE

🗣 VOICE

👂 AUDIENCE

⚙ INFLUENCE

SPACE available · VOICE waiting · AUDIENCE waiting · INFLUENCE waiting

⏱ 4 min

👩‍🏫 I Do · picture first

Make the first scientific idea visible

OBSERVATIONwhat is noticedinformation directly seen, heard or measured

COMPARISONsame test for bothlooking for what is the same and different using the same method

CONCLUSIONwhat the evidence meansa statement supported by results

WHAT THIS MODEL HELPS US SEE

Record with the frame: From the __ view, the disc looked __ while the sphere looked __.

WHAT THIS MODEL DOES NOT SHOW

The models show overall shape but not real size, surface detail, gravity, distance or the slight flattening of rotating bodies.

Step 1

Place the disc and sphere at the same marked distance. Observe both from the front without naming the expected answer.

Step 2

Turn both through the same quarter turn, then to the edge direction. Record only the outline seen each time.

Step 3

Check the six observations before concluding. A fair comparison uses the same viewpoints for both objects.

Word help keeps the scientific term visible and adds a plain-language bridge.

🛰 Real space evidence · does it fit a sphere?

Press each piece of evidence. Decide: does it SUPPORT approximately spherical, or is it a LIMIT?

Press one piece of evidence.

🛡 SPACE

🗣 VOICE

👂 AUDIENCE

⚙ INFLUENCE

SPACE available · VOICE waiting · AUDIENCE waiting · INFLUENCE waiting

⏱ 4 min

🤝 We Do · everyone commits

Which method gives the fairest shape comparison?

Everyone commits before explanation.

Use a button, point, say/sign or let an adult operate the chosen button. A retry is information, not a penalty.

Choose one response, then use the model to explain or retry.

🛡 SPACE

🗣 VOICE

👂 AUDIENCE

⚙ INFLUENCE

SPACE available · VOICE waiting · AUDIENCE waiting · INFLUENCE waiting

⏱ 3 min

👩‍🏫 I Do 2 · connect the second idea

Connect the model to the second idea

Connection: the model is useful when its visible pattern is translated into a scientific explanation.

Connection 1

Turn the six model observations into a comparison: the disc outline changes; the sphere's outline stays round.

Connection 2

Add real observations: spacecraft views keep showing round whole-body outlines, Earth's eclipse shadow is curved, and the curved day-night edge moves across Earth and the Moon.

Connection 3

Make the careful claim: gravity makes large bodies nearly round; rotation can flatten them slightly, and surface features add small bumps. The Sun, Earth and Moon are approximately spherical.

MODEL STRENGTH

Record with the frame: From the __ view, the disc looked __ while the sphere looked __.

MODEL LIMIT

The models show overall shape but not real size, surface detail, gravity, distance or the slight flattening of rotating bodies.

🛡 SPACE

🗣 VOICE

👂 AUDIENCE

⚙ INFLUENCE

SPACE available · VOICE waiting · AUDIENCE waiting · INFLUENCE waiting

⏱ 4 min

🤝 We Do 2 · interactive lab

Six-observation world shape lab

Sort the model results and real space observations, then freeze enough evidence for a careful conclusion.

Choose one recorded observation.Commit it to disc, sphere or real space evidence.Repair using the named view or sky observation.Freeze model and real evidence, then conclude.

Cards to place

Matching groups

The records are empty. A model comparison and real space observations do different jobs; use both.

🧩 Science glitch · find and repair it

Claim: Conclusion glitch: the Sun, Earth and Moon are perfectly smooth, perfect spheres.

The incorrect idea is shown as a challenge, never as teaching.

🛡 SPACE

🗣 VOICE

👂 AUDIENCE

⚙ INFLUENCE

SPACE available · VOICE waiting · AUDIENCE waiting · INFLUENCE waiting

⏱ 15 min

✏️ Independent · evidence of learning

Complete the fair three-view comparison and present an evidence-led conclusion about Solar System body shape.

👐 Physical route

Large ball, rigid card disc, three-position viewing mat, six-row record and pencil or camera on a school device.

Same outcome: I can collect fair comparison observations and combine them with real space evidence to describe the Sun, Earth and Moon as approximately spherical.

🖥 Offline digital / director route

Annotate the six local model frames and at least one local spacecraft, eclipse or curved day-night-edge card. No web access is needed.

Same evidence: Six model observations, one named real space observation, an approximately spherical conclusion and one model limitation.

🧰 Equipment / setupLarge ball, rigid card disc, three-position viewing mat, six-row record and pencil or camera on a school device.

🛡 Safety / sensoryUse large clean models, keep them on the table, maintain clear walkways and use a camera only under school routines.

🖥 Offline parityAnnotate the six local model frames and at least one local spacecraft, eclipse or curved day-night-edge card. No web access is needed.

No-equipment/access route: Use the prepared model and real-space card set; record similarities, differences and the conclusion on paper.

◆ Supported

Complete a six-row picture table and choose the conclusion supported.

Scaffold

Use outline choices: round, oval, line. Finish: This supports __ because….

▲ Standard

Record all six model observations, add one real space observation and justify the approximately spherical description.

Scaffold

Cite a matched model view and a real observation; keep observations separate from the conclusion.

★ Stretch

Evaluate the evidence, identify an alternative explanation from one view and state why combined views are stronger.

Scaffold

Include a fair comparison, several pieces of evidence that agree and a model limitation.

Evidence gate

1 · Pupil decisionPrediction, question, method or choice is visible.

2 · Observable evidenceA result, source note, model state or adult observation is preserved.

3 · Pupil meaningSix model observations, one named real space observation, an approximately spherical conclusion and one model limitation.

🛡 SPACE

🗣 VOICE

👂 AUDIENCE

⚙ INFLUENCE

SPACE available · VOICE waiting · AUDIENCE waiting · INFLUENCE waiting

⏱ 4 min

🎫 Exit ticket · response becomes the next step

Finish with evidence, a genuine Audience and one next step

Supported

Choose the result that shows a sphere and say or point to why it is different from a disc.

Standard

Cite one paired model view and one real space observation to justify approximately spherical.

Stretch

Evaluate how strong the lab evidence is and name one extra real-world observation that would strengthen it.

Adult Audience

The familiar adult genuinely receives the pupil response, then says back the Science they heard or saw. The adult does not add a score or rewrite the pupil.

SPACE available · VOICE waiting · AUDIENCE waiting · INFLUENCE waiting

Receive the pupil’s Voice, complete real Audience, then choose what changes.

What I said, and what it changed:Next I will ______.One next step chosen after the adult listened.

Session state is temporary. Reload clears responses; there is no account, upload or saved pupil identity.

← Previous · W9A · Spherical Bodies: Shape Evidence ⌂ Start Next · W10A · Solar System Research: Evidence Desk →

🛡 SPACE

🗣 VOICE

👂 AUDIENCE

⚙ INFLUENCE

SPACE available · VOICE waiting · AUDIENCE waiting · INFLUENCE waiting

Spherical Bodies: World Shape Lab

Which result would most strongly challenge a flat-disc model? Commit before seeing the method.

Make the first scientific idea visible

WHAT THIS MODEL HELPS US SEE

WHAT THIS MODEL DOES NOT SHOW

🔭 World Shape Lab · fair test, then real evidence

🛰 Real space evidence · does it fit a sphere?

Which method gives the fairest shape comparison?

Connect the model to the second idea

MODEL STRENGTH

MODEL LIMIT

Six-observation world shape lab

Cards to place

Matching groups

🧩 Science glitch · find and repair it

Complete the fair three-view comparison and present an evidence-led conclusion about Solar System body shape.

👐 Physical route

🖥 Offline digital / director route

◆ Supported

▲ Standard

★ Stretch

Evidence gate

Finish with evidence, a genuine Audience and one next step

Adult Audience

GROW Science · W9B · Spherical Bodies: World Shape Lab

Model helps us see

Model does not show

Supported

Standard

Stretch

Evidence target

Exit, Audience and evidence · W9B

What I said, and what it changed

Next I will ______.

Influence — visible teaching change

Adult witness note