Teacher lens
Find out what went wrong.
The same spacecraft model at all six academic depths. Nothing below is written by hand — every cell is read from the disclosure layer the lesson actually uses.
← PrepareSunlight to energyOrbit pass and linkPower through the shadowTruth and measurementDeployment to first contactCommanding attitudeStabilising the spinSurviving the environmentPlanning the observationConfiguring the spacecraftDiagnosing the missionWriting a safe policyProving it against evidence
What each depth is asked to produce
These requirements drive which inputs the learner sees.
| Depth | Prediction | Two cases | Plot or table | Explanation | Limitation | Provenance |
|---|---|---|---|---|---|---|
| Grade 6 | Yes | — | Yes | Yes | — | — |
| Grade 7 | Yes | Yes | Yes | Yes | — | — |
| Grade 8 | Yes | Yes | Yes | Yes | Yes | Yes |
| Grades 9–10 | Yes | Yes | Yes | Yes | Yes | Yes |
| Grades 11–12 | Yes | Yes | Yes | Yes | Yes | Yes |
| University | Yes | Yes | Yes | Yes | Yes | Yes |
Which evidence channels are visible
A channel hidden at a depth is removed on the server. It never reaches the learner's browser.
| Channel | Grade 6 | Grade 7 | Grade 8 | Grades 9–10 | Grades 11–12 | University |
|---|---|---|---|---|---|---|
| mission state | Yes | Yes | Yes | Yes | Yes | Yes |
Learner wording and curriculum wording
Learners read the mission in plain language. The curriculum phrasing signed off in the frozen academic layer is unchanged, and is shown here so you can map one to the other.
| Step | What the learner reads | Academic phrasing |
|---|---|---|
| Mission question | The payload worked and the data never arrived. What stopped it? | What failed, what evidence supports the diagnosis, and what is the safest justified recovery action? |
| Theory | One mission, one set of readings. Everything you need to explain the failure is in them. | Name what you will observe in familiar language. Stage intent: match warning. |
| Prediction | Before you look: what do you think a spacecraft is most likely to run short of, and what would happen next? | Predict a simple trend (higher/lower, sooner/later) before running the Twin. |
| Run | Run the mission and collect its readings. | Run the Twin once and describe what you see. Runtime remains the frozen Twin; this plan does not execute physics. |
| Analysis | Follow the battery down and see what changes when it gets low. Then look at what was collected against what was delivered. | Explain the trend without using hidden hashes or professional jargon. Evidence intent: fault evidence chain + diagnosis + recovery plan/test result. |
| Decision | What one change to the mission policy would you make, and which reading justifies it? | Choose a simple next action and say why it is safer or clearer. |
| Limitation | Name one thing this model does not tell you about recovering a real mission. | Name at least one frozen-model limitation that this experiment cannot answer. |