WOVI · SESSION 3 OF 4 · LEARNER WORKSHEET
Transfer lab
You need: paper, a pencil and an adult to discuss your ideas with. These are made-up practice cases; all the rules and numbers you need are below. No game or coding is needed.
For each challenge, predict first, choose a change, point to evidence and suggest one further test. Keep your notes for Session 4.
1. A greenhouse with two needs · 6–7 minutes
A watering helper has exactly 6 cups. The gardener wants the seedling tray to receive at least 2 cups. The helper can choose only one of these three plans.
| Plan | Seedlings | Flowers |
|---|---|---|
| A | 1 cup | 5 cups |
| B | 2 cups | 4 cups |
| C | 3 cups | 3 cups |
Start: score = seedling cups + (2 × flower cups). The helper chooses the highest score. Calculate all three scores, predict its choice and check the gardener’s request.
Update 1: keep that score, but subtract 3 points if seedlings get fewer than 2 cups. Which plan wins now?
Update 2: keep the original score and the 3-point penalty. Now add a 4-point flower bonus only if the flowers get 5 cups. Only Plan A earns this bonus. Which plan wins? Does the penalty still protect the seedlings?
Choose a guard: what happens if plans giving seedlings fewer than 2 cups are removed before any points are compared? Use the Update 2 scores for the plans that remain.
My first prediction and scores:
My choices after Updates 1 and 2:
My guard and evidence that it changes the choice:
A further rule or situation I would test:
2. The leaf-photo gap · 6–7 minutes
A practice helper labels leaf photos as “round” or “narrow.” Its training set had 20 photos, all taken in bright light. It was then checked on 25 different photos that were not in training.
| Light | Test photos | Correct |
|---|---|---|
| Bright | 20 | 18 |
| Dim | 5 | 2 |
Predict: would the total number correct tell the whole story? Add the two rows. Compare 18 out of 20 with 2 out of 5. You may draw groups of boxes instead of calculating percentages.
Choose a next step: (A) add 10 more bright training photos; (B) add 10 new dim training photos, including both leaf types; or (C) train on the answers to these exact test photos, then use the same photos as proof that the change worked.
Choose a step and explain which gap it addresses. Then plan a fresh check: what photos should be kept out of training, and which group results would you compare? A proposed change still needs testing.
My prediction and total correct out of 25:
The group evidence I noticed:
My next step and reason:
My fresh test would include:
3. A museum label that can wait · 5–7 minutes
A museum’s practice helper suggests a label for a photo. It gives points to its two best guesses. These are ranking points, not percentages or chances of being right.
Use this review rule: if the photo is blurred OR the point gap is less than 3, ask a person to review it. Otherwise, use the top guess as a temporary label. Gap = top points − second-place points.
| Photo | Image | Top guess | Second guess |
|---|---|---|---|
| A | Clear | Cup · 8 | Bowl · 3 |
| B | Clear | Cup · 6 | Bowl · 5 |
| C | Blurred | Bowl · 9 | Cup · 2 |
Predict: which photos will need review? Work out each gap and apply both parts of the rule. A big gap does not cancel the blurred-photo rule.
Choose an action: for one review case, should the person request a clearer photo, inspect the object or leave it unlabelled for now? Explain what evidence that action could add. Then invent one new photo case to test the review rule.
My predictions, gaps and decisions for A/B/C:
The rule evidence for a review decision:
My chosen human action and reason:
My new test case and expected decision:
Compare the three investigations · 2–3 minutes
Which case needed a rule change, which needed different examples, and which needed a person to check? Choose one sentence from your notes that shows why the same fix would not solve every problem.
One difference I can explain: