The method behind this example
Choose evidence that could disprove your first explanation.
Your independent challenge: The assigned scene asks you to select a follow-up check for a different claim; the tray-check record here cannot answer it.
The investigated explanation and learning record complete this example. The scene delivery is an optional extension.
Start this worked example
- Choose Watch the worked example. The student demonstrator explains the task, talks through each action, then reviews the observations and finished submission. Narration starts with this click; Mute narration keeps the same experience captioned.
- Choose Take control to try the current chapter. Follow its prompt, change the labelled controls and select Test my decision.
- Read the feedback, retry if needed, then continue with Next chapter. Each checked chapter provides evidence for one connected operation.
- After every chapter check, return to the mission station, perform the intervention, collect its package and follow the marked checkpoints to complete the handover. Watching performs these same actions with narration. Direct chapter access is a partial preview until the full evidence and handover are complete.
- Use Fullscreen mission after opening the scene to keep the instructions, chapter controls and equipment together. Reflections and exports come after your practical attempt.
This is an alternate example, not your assigned exercise. Your course task is linked after the player.
YOUR SKILL
Observation and source judgement
A NEW SETTING
A glass conservatory after an interrupted instrument check.
WHAT CHANGES
The conservatory uses its own 11:35 scene, a tray-check claim, an unsupported duration estimate, and a later two-feature comparison. Its recall and investigation decisions differ from the assigned scene.
Scene guide · people, evidence and object placement
Who is in the conservatory example
An alternate conservatory observation scene.
- Your part
- Watch follows a worked solution. Take control lets you move the student avatar and try its decisions. The demonstrator in the explanation is modelling a solution, not an extra witness in the story.
- Your instructor
- Mara stands in the marked teaching bay outside the investigation area. She guides the exercise. Her presence, appearance and idle gestures are not clues about what happened in the case.
- People in this scenario
- The gardener is mentioned in the note and the explanation being tested. The gardener is not shown. Mara is the instructor; the student is the example learner. Neither is evidence of who checked the trays or opened the hatch.
- What counts as evidence
- Inspect the clock, green mug, ledger, note and hatch. The note's account may be checked; the instructor's presence and movements are not clues.
- Why the objects are here
- The clock and hatch belong to the room; the mug, ledger and note belong on the desk. The changed scene must be compared with the original record.
Perception Gallery
Watch the complete alternate example. Take control of the equipment whenever you are ready.
An alternate example · separate from your assessed workHow to move, inspect and complete the activity
Use WASD or arrow keys to walk. Press E near an instrument to examine it. Inspect means read its details; Use equipment performs the action named in its status message. The task controls let you choose exact settings and test a solution. Once verified, use the mission station to put it into effect, collect the resulting evidence or cargo, follow its checkpoints and complete the handover at the receiving station.
Scroll over the scene or use Zoom + / Zoom − for a closer or wider view. Click and drag to turn whenever the cursor is free. Choose Fullscreen mission to keep the scene, mission instructions and all task controls together. Fullscreen starts with a free cursor so you can scroll the panel and choose options. Press X or Lock cursor (X) to turn by moving the mouse. Press X again to free the cursor and return to click-and-drag turning. Tab also frees the cursor. The X shortcut stays inactive while typing or choosing a form value. Press Escape or Exit fullscreen to return to the page. On touchscreens, drag to look and use the zoom buttons. If your browser cannot enter native fullscreen, the mission expands to fill its window.
Choose Watch to follow the worked example, or Take control to try it yourself. The transcript and completed example remain available if 3D is unavailable. Demonstrations never change assessed progress.
I am investigating the conservatory. My job is to make a record another person could check, separate what I see from what someone says, and choose evidence that could test an explanation. I will inspect, classify, recall, compare, and finish an observation record. Mara is our instructor in the teaching bay. She is not the gardener; the gardener is mentioned only in the written account. The method we are practising is: Choose evidence that could disprove your first explanation.. Our field objective is: Send the conservatory custodian a defensible investigation brief before the tray check resumes. An unverified account could send the custodian to the wrong cause. The investigation and explained record complete this lesson. A scene delivery is an optional extension. You can pause, mute, replay, or take control at any point. The captions show the same explanation.
Narration starts after you choose Watch or Play. Captions remain available if this browser has no working voice.
Optional scene extension
Each chapter provides evidence for this operation. Inspect, investigate, act, and complete the handover.
FIELD OPERATION · Briefing
Operation Glasshouse
Send the conservatory custodian a defensible investigation brief before the tray check resumes.
An unverified account could send the custodian to the wrong cause.
Inspect the mission station to begin your investigation.
Nothing collected.
Mission actions become available when the activity loads.
Mission record and accessible controls
These controls perform the same actions as the marked stations in the scene. Use them with a keyboard or touch, or when graphics are unavailable. Equipment tests establish whether your intervention is supported. The final handover records a mission outcome; your explanation is assessed separately.
- No mission actions yet.
The complete transcript and finished example are available below while the player loads.
THE DEMONSTRATOR’S REASONING
Inspect before interpreting
The camera reveals a clock reading 11:35, a green mug beside a planting ledger and a closed service hatch. The demonstrator initially calls the room abandoned, then stops: abandonment is not visible.
Why this matters
Specific features are reproducible evidence. A story about them introduces an additional claim.
A plausible mistake
Calling the room abandoned adds a history the scene does not supply.
WHAT THE DEMONSTRATOR DID
YOUR LEARNING CONTROLS
Make the skill your own.
What time does the wall clock show? Enter the time as HH:MM.
Watch the apparatus change as the student demonstrates. Take control whenever you want to test the same idea yourself.
BASED ON YOUR ATTEMPTS
Watching and practising are recorded separately in this visit. These examples do not change your assessed work or skills passport.
NOW TRANSFER THE SKILL
Carry the method into your own work.
The assigned scene asks you to select a follow-up check for a different claim; the tray-check record here cannot answer it.
A COMPLETE WORKED SUBMISSION
Completed observation record — conservatory
Example work from this demonstration's scenario. Use it to understand the expected evidence and explanation, then make your own decisions in the assigned activity.
Download the complete exampleRead the finished work
Completed demonstration example — conservatory observation record
This alternate example shows a method. It is not an answer to the assigned lab.
Initial inspection
At the first inspection the clock displayed 11:35, a green mug stood beside the planting ledger and the service hatch was closed. These are supplied scene observations. A visible note asserted, “I checked every tray.” The note's presence is observable; its contents remain a claim.
Reconstruction and correction
I initially recalled the hatch as open. Rechecking the scene showed that I had inserted a familiar detail. I preserved the incorrect recollection and correction rather than rewriting the attempt. I classified “the tray inspection lasted thirty-five minutes” as an inference: the 11:35 reading alone supplies neither the inspection start nor its duration.
Changed situation
At the second inspection the clock read 11:50 and the hatch was open. The green mug remained unchanged. Two recorded features changed. No record established who opened the hatch or why.
Next investigation
Inspect the tray check records against the claimed complete inspection. Matching records would support the account within their scope; missing entries would require clarification.
Reflection
My main error was adding a plausible detail, not failing to look at an object. A regional inspection helped coverage, but preserving a separate interpretation column helped more with this mistake. In my own scene I would make the same distinction before building a story. I would not claim that two changed features prove a particular person's intent.
Route: authored 3D/interactive demonstration. Assistance: narrated example and one recorded correction.
Method to carry forward
Choose evidence that could disprove your first explanation.
The assigned scene asks you to select a follow-up check for a different claim; the tray-check record here cannot answer it.
The complete example explains one defensible approach. In your own challenge, select observations and tests from the supplied rules, keep your prediction separate from the result, and justify both the checks you perform and those you omit.
The chapter investigation and its explained record complete the core method. The scene delivery is an optional extension; it is not evidence of deeper understanding on its own.
Complete transcript and decisions · readable without JavaScript
Before we begin · expected task and evidence
I am investigating the conservatory. My job is to make a record another person could check, separate what I see from what someone says, and choose evidence that could test an explanation. I will inspect, classify, recall, compare, and finish an observation record. Mara is our instructor in the teaching bay. She is not the gardener; the gardener is mentioned only in the written account. The method we are practising is: Choose evidence that could disprove your first explanation.. Our field objective is: Send the conservatory custodian a defensible investigation brief before the tray check resumes. An unverified account could send the custodian to the wrong cause. The investigation and explained record complete this lesson. A scene delivery is an optional extension. You can pause, mute, replay, or take control at any point. The captions show the same explanation.
1. Inspect before interpreting
What I need to do: Step 1. Inspect before interpreting. I start with the wall clock. I read its hands and write the time, without inventing a reason why the room looks this way.
Supplied context: The camera reveals a clock reading 11:35, a green mug beside a planting ledger and a closed service hatch. The demonstrator initially calls the room abandoned, then stops: abandonment is not visible.
Watch my actions: For "Clock time (HH:MM)", I enter 11:35. I check the demonstrated result.
What I observed: The record preserves the exact display reading without inventing a cause. Specific features are reproducible evidence. A story about them introduces an additional claim.
Why: Specific features are reproducible evidence. A story about them introduces an additional claim.
Decision: What time does the wall clock show? Enter the time as HH:MM.
- Clock time (HH:MM): 11:35
Result: The record preserves the exact display reading without inventing a cause.
Common mistake: Calling the room abandoned adds a history the scene does not supply.
2. Separate the account from the object
What I need to do: Step 2. Separate the account from the object. I inspect the note beside the ledger. I can observe that the note exists, but I have not independently checked its statement that every tray was inspected.
Supplied context: A note reads, 'I checked every tray.' The note is visibly present; the assertion that every tray was checked remains the writer's account. The demonstrator places that assertion in the claim column.
Watch my actions: For "Statement status", I choose "claim". I check the demonstrated result.
What I observed: The account remains available for comparison with independent records. Evidence that a statement was made does not independently establish its truth.
Why: Evidence that a statement was made does not independently establish its truth.
Decision: Classify the assertion about checking every tray.
- Statement status: claim
Result: The account remains available for comparison with independent records.
Common mistake: Classifying the whole assertion as an observation treats seeing words as proving their content.
3. Distinguish clock time from duration
What I need to do: Step 3. Distinguish clock time from duration. I compare the clock reading with my duration estimate. Thirty-five minutes would require a justified start time; the scene supplies none.
Supplied context: The wall clock reads 11:35. The demonstrator initially writes that the tray inspection lasted thirty-five minutes. No start time or elapsed-time record has been supplied, so the duration is an inference.
Watch my actions: For "Explanation status", I choose "inference". I check the demonstrated result.
What I observed: The proposed duration is recorded as an unsupported inference. The observation remains the 11:35 clock reading. A clock reading gives a time of day. Duration needs a justified start and finish; the minute hand alone does not supply either.
Why: A clock reading gives a time of day. Duration needs a justified start and finish; the minute hand alone does not supply either.
Decision: Classify 'The tray inspection lasted thirty-five minutes'.
- Explanation status: inference
Result: The proposed duration is recorded as an unsupported inference. The observation remains the 11:35 clock reading.
Common mistake: Treating the minute hand as elapsed time silently invents a start at eleven o'clock.
4. Reconstruct without looking
What I need to do: Step 4. Reconstruct without looking. With the scene covered, I reconstruct the hatch state. I initially remembered it as open. I check my original record and preserve the correction to closed.
Supplied context: The scene is covered. The demonstrator recalls the hatch as open, checks the original record and corrects that invented detail. The correct record said the hatch was closed.
Watch my actions: For "Hatch state", I choose "closed". I check the demonstrated result.
What I observed: The corrected reconstruction matches the inspected record. An added false detail differs from an omission; the remedy is to check expectations as well as attention.
Why: An added false detail differs from an omission; the remedy is to check expectations as well as attention.
Decision: Recover the actual hatch state.
- Hatch state: closed
Result: The corrected reconstruction matches the inspected record.
Common mistake: Do not silently replace the wrong recollection; keep the error and its correction.
5. Compare a changed scene
What I need to do: Step 5. Compare a changed scene. I compare the second inspection with my first record, feature by feature. I look for changes and things that stayed the same.
Supplied context: A second inspection shows the same mug, clock now reading 11:50, and an open hatch. The demonstrator records two changes and preserves the unchanged mug rather than rebuilding a new story.
Watch my actions: For "Changed features", I enter 2. I check the demonstrated result.
What I observed: Two changes are supported; who caused them is still unknown. A comparison needs both changed and stable features. Stable features anchor the comparison.
Why: A comparison needs both changed and stable features. Stable features anchor the comparison.
Decision: How many of the three recorded features changed?
- Changed features: 2
Result: Two changes are supported; who caused them is still unknown.
Common mistake: A different clock reading is not evidence that the gardener opened the hatch.
6. Choose the next evidence
What I need to do: Step 6. Choose the next evidence. I choose the next record that could test the gardener's claim. Someone's handwriting or confident manner cannot establish whether the trays were checked.
Supplied context: Tray inspection records can test the gardener's claim. The demonstrator requests those records rather than inferring honesty from handwriting or confidence.
Watch my actions: For "Next evidence", I choose "Inspect tray check records". I check the demonstrated result.
What I observed: The completed record separates observations, an account, a causal inference and a testable next question. A useful next action can disconfirm a claim, not merely repeat it.
Why: A useful next action can disconfirm a claim, not merely repeat it.
Decision: Choose an independent check.
- Next evidence: Inspect tray check records
Result: The completed record separates observations, an account, a causal inference and a testable next question.
Common mistake: Looking for reassuring style does not verify the claimed inspection.
Optional field extension
All chapter evidence checks are complete. I return to the mission station and seal the investigation brief. I am putting the verified solution into effect, then checking what changes.
I collect Conservatory evidence brief. The verified intervention released this package. I now carry it through the marked handover route.
I carry Conservatory evidence brief to Conservatory records desk. I confirm this checkpoint before continuing so the handover trace records the route actually followed.
I carry Conservatory evidence brief to Custodian handover. I confirm this checkpoint before continuing so the handover trace records the route actually followed.
At the receiving station, I hand the brief to the custodian. I check the receipt before calling the field operation complete.
My observations and finished submission
My initial observations were 11:35 on the wall clock, a green mug beside the ledger, and a closed hatch. The note's statement about checking every tray is a claim. My estimate of a thirty-five-minute inspection is an inference: the clock reading supplies no start time. I corrected my mistaken recall of the hatch, then recorded the later 11:50 reading and open hatch as two changes. I still cannot say who caused them. I finish by requesting tray-check records and preserving that uncertainty in my observation record. Choose evidence that could disprove your first explanation. Open "Read the finished work" or download the complete example to inspect the evidence and explanation together. The assigned scene asks you to select a follow-up check for a different claim; the tray-check record here cannot answer it.
The complete submission is available in Read the finished work above and as a Markdown download.