How an Innovation Works and Why It Matters
Build a clear problem-process-benefit-limit explanation before evaluating the evidence.
สร้างคำอธิบายปัญหา กระบวนการ ประโยชน์ และข้อจำกัดให้ชัด ก่อนประเมินหลักฐาน
TF24 · Science, Medicine & Innovation
Evaluate an Innovation: Evidence, Benefit, and Risk
B2 · Compare evidence, qualify claims and revise a recommendation
Why this lesson matters · เหตุผลที่เรียนบทนี้
For learners: Evaluate competing innovation claims with evidence, limits and alternatives, then revise a recommendation when new evidence changes the balance.
For teachers: The six-stage mastery cycle integrates reading, comparison, listening and independent recommendation; new evidence and changed constraints force an explicit adaptation.
สำหรับผู้เรียน: ประเมินคำกล่าวอ้างเกี่ยวกับนวัตกรรมด้วยหลักฐาน ข้อจำกัด และทางเลือก แล้วปรับคำแนะนำเมื่อหลักฐานใหม่เปลี่ยนสมดุล
สำหรับครู: วงจรการเรียนรู้หกขั้นรวมการอ่าน การเปรียบเทียบ การฟัง และคำแนะนำอิสระ โดยหลักฐานใหม่และข้อจำกัดที่เปลี่ยนบังคับให้ผู้เรียนปรับเหตุผลอย่างชัดเจน
Your Goal
Compare claims and evidence, evaluate one benefit and one limitation, identify an unanswered question, and revise a recommendation after new evidence.
คำอธิบายเป้าหมายภาษาไทย
เปรียบเทียบคำกล่าวอ้างกับหลักฐาน ประเมินประโยชน์และข้อจำกัด ระบุคำถามที่ยังไม่มีคำตอบ และปรับคำแนะนำเมื่อมีหลักฐานใหม่
Why this lesson matters
For the learner: Real decisions require more than repeating a promising claim. You must weigh evidence, limits, alternatives and uncertainty.
For the teacher: Reading, data comparison, listening and independent recommendation are linked in one evidence-to-decision cycle with a changed constraint.
เหตุผลภาษาไทย: ผู้เรียนฝึกแยกคำกล่าวอ้างออกจากผลที่วัดได้ เปรียบเทียบทางเลือก และเปลี่ยนคำแนะนำอย่างมีเหตุผลเมื่อข้อมูลเปลี่ยน
EVDADAPTFPProgress Focus
EVD · EvidenceDistinguish claim, result, limitation and unanswered question.
ADAPT · AdaptationRevise the recommendation when evidence or constraints change.
FP · Final PerformanceIntegrate reading, listening and speaking/writing independently.
30-minute lesson path
3 minInput
4 minNotice
5 minCompare
5 minListen
6 minAdapt
7 minProve
Teacher Lesson Plan · Read before class
This is a fictional classroom dataset. Treat every number as evidence with a scope and limit. Do not reward confident language when the evidence does not support it.
| Time | Teacher does | Student does | Required evidence |
|---|---|---|---|
| 0–3 | Shows the vendor claim and pilot summary without explaining the decision. | Labels three statements as supported, partly supported or not supported. | Claim/evidence distinction. |
| 3–7 | Elicits language for support, comparison, limits and uncertainty. | Repairs four overstrong statements. | Proportionate language. |
| 7–12 | Asks which criterion changes the decision and why. | Compares both options across five criteria. | Benefit, limitation, alternative. |
| 12–17 | Plays A01 once for gist and once for details. | Records the strongest result, clearest limit and one question. | Listening-based update. |
| 17–23 | Changes the priority and tests whether the recommendation adapts. | Revises the recommendation with a condition and monitoring plan. | Reasoned adaptation. |
| 23–30 | Plays A02 and scores the first unsupported final response. | Integrates all sources, decides, explains uncertainty and retries one weak criterion. | EVD / ADAPT / FP. |
Teacher standard: Ask “What supports that?” and “What would change your view?” Correct one evidence problem and one language problem only before the focused retry.
1. Read the claim and pilot evidence
3 minSeparate what the supplier promises from what this small trial actually measured.
Vendor claim: “The smart system cuts water use by 30% in every garden and eliminates manual checks.”
Four-week smart-system pilot
- Water used: 1,180 litres; historical four-week average: 1,420 litres.
- Plant-condition score: 8.1; historical average: 7.9.
- The sensor failed twice after heavy rain.
- One site, one season and four weeks only.
What the pilot cannot show
- Performance in every garden.
- Long-term repair cost.
- Whether manual checks can stop completely.
- Results in a dry season.
“The system saves 30% in every garden.”
“The trial suggests lower water use.”
“Manual checks are no longer needed.”
STUDENT TASK
- Choose the support level for all three statements.
- Calculate the approximate water-use reduction in this trial.
- Name one result, one limitation and one unanswered question.
You are ready whenYou can state what the pilot supports without extending it to every garden.
Teacher Help · Stage 1
Accept approximately 17%. Ask for the scope after every answer: one site, one season, four weeks. Do not let the learner replace evidence with the vendor claim.
2. Notice language for evidence and limits
4 minUse the language level that matches the evidence.
Strong support
demonstrates · consistently shows
demonstrates · consistently shows
Limited support
suggests · indicates · may
suggests · indicates · may
No support / limit
does not establish · cannot determine
does not establish · cannot determine
The evidence suggests that …Use when the result is promising but limited in scope.
Compared with …, the option used …Make the comparison and measure explicit.
A likely benefit is …; however …Balance a useful result with a relevant limitation.
We cannot yet determine whether …Name the unanswered question instead of guessing.
On balance, I would recommend … provided that …Give a proportionate conditional recommendation.
STUDENT TASK
- Repair “The trial proves the system works everywhere.”
- Make one more/equal/less comparison from the data.
- State one positive result, one neutral result and one negative result.
- Write one unanswered-question sentence.
Balanced example
The evidence suggests lower water use in this trial. Plant condition was broadly similar, but sensor reliability remains a concern. We cannot yet determine the long-term repair cost.
The evidence suggests lower water use in this trial. Plant condition was broadly similar, but sensor reliability remains a concern. We cannot yet determine the long-term repair cost.
You are ready whenYour support level and verb strength match the evidence.
Teacher Help · Stage 2
Require all three states: positive, neutral and negative. Check that more/equal/less comparisons are explicitly taught before they appear in the final task.
3. Compare two options across criteria
5 minThe committee must choose between a smart controller and an upgraded timer. No single criterion decides automatically.
| Criterion | Smart controller | Upgraded timer | Decision question |
|---|---|---|---|
| Water use | 1,180 L; about 17% below the old average. | 1,260 L; about 11% below the old average. | Is the extra reduction large enough to matter? |
| Plant condition | 8.1 / 10 | 8.0 / 10 | Is this difference meaningful or broadly equal? |
| Reliability | Two sensor failures after heavy rain. | No equipment failure in the pilot. | What fallback is available? |
| Purchase cost | $680 | $260 | What is the opportunity cost? |
| Workload | Some checks still required; time not measured. | Manual adjustment on two hot days. | Which workload evidence is missing? |
STUDENT TASK
- Choose the two most important criteria for this garden.
- Give one advantage and one disadvantage of each option.
- Identify one result that is broadly equal.
- Make a provisional recommendation with one condition.
Provisional recommendationOn balance, I would recommend __________ because __________. However, this depends on __________, and we still need evidence about __________.
You are ready whenYour recommendation mentions both options, a trade-off and an unanswered question.
Teacher Help · Stage 3
Ask the learner to rank two criteria before deciding. Challenge a cost-only or water-only answer by pointing to one competing criterion.
4. Listen to the eight-week update
5 minListen once for the decision problem and once for the details that could change your provisional recommendation.
Audio 1 · American English · Matthew
STUDENT TASK
- First listen: state the decision and the main new contrast.
- Second listen: record water reduction, reliability/cost, workload and the coming-season constraint.
- Name the strongest result, clearest limitation and most important unanswered question.
- Say whether your provisional recommendation becomes stronger, weaker or unchanged.
You are ready whenYour response uses at least three details from the audio and explains why one matters.
Evidence and transcript · open after the listening response
Key evidence: smart 20% lower water use; timer 12% lower; similar plant condition; three smart-sensor errors plus $120; timer needs about two volunteer hours weekly; next season drier; one option only.
Transcript: Here is the eight-week update from the garden trial. The smart system used twenty percent less water than the old schedule, while the upgraded timer used twelve percent less. Plant condition was similar under both systems. However, three smart-system sensors gave incorrect readings after heavy rain, and replacement parts added one hundred and twenty dollars. The timer had no equipment failure, but volunteers spent about two hours each week checking and adjusting it. Next season is expected to be drier. The committee can fund only one option, so please decide which evidence matters most, identify one unanswered question and recommend a proportionate next step.
Teacher Help · Stage 4
Play once for gist and once for evidence. Permit one focused replay only if a decision-changing detail is missing. Require an oral update before opening the transcript.
5. Adapt when the priority changes
6 minA good recommendation changes only when the new constraint changes the balance of evidence.
Original priority
Reduce water use while keeping plant condition stable.
Changed priority
The garden now has fewer volunteers, but heavy rain is also more likely during the first month.
STUDENT TASK
- Explain which new priority supports the smart system and which supports the timer.
- Revise your recommendation or defend why it should stay the same.
- Add one condition, one fallback and one success signal.
- State what evidence you would collect during the first month.
- Partner challenge: “What finding would make you switch options?”
Proportionate adaptation
Fewer volunteers strengthens the case for automation, but heavy-rain sensor errors weaken it. I would run a one-month monitored smart-system trial only if a manual moisture check is used after heavy rain. If errors continue, the timer becomes the fallback.
Fewer volunteers strengthens the case for automation, but heavy-rain sensor errors weaken it. I would run a one-month monitored smart-system trial only if a manual moisture check is used after heavy rain. If errors continue, the timer becomes the fallback.
Your revised recommendationI would __________, provided that __________. We would monitor __________. If __________, we would switch to __________.
You are ready whenYour recommendation, condition, monitoring signal and fallback respond to both sides of the changed priority.
Teacher Help · Stage 5
Do not accept a changed recommendation without a changed reason. Ask for the exact evidence or constraint that moved the balance.
6. Final Practice · Integrate new evidence
7 minListen to an independent review, combine it with the earlier sources and give a complete decision without a model.
Audio 2 · British English · Amy
Independent mixed-skill task
- State whether the independent review strengthens, weakens or changes your recommendation.
- Compare at least two sources and both options.
- Evaluate one benefit, one limitation and one broadly equal result.
- Name one unanswered question.
- Recommend an option, condition, monitoring signal and fallback.
- Deliver a 90-second spoken briefing or a 140–180 word written recommendation.
No model. Use evidence notes only.
Final transcript · open after scoring
An independent six-month review of a similar garden has arrived. It found eighteen percent lower water use with the smart system. Plant condition was similar under both systems. Two sensors needed replacement, and the review did not measure volunteer training time. A local donor will now cover half of either system’s purchase cost, but the garden must choose within one week. Explain whether this new evidence strengthens, weakens or changes your recommendation, and state what should be monitored after the decision.
Progress Check
EVD · Evidence
2: Compares two sources, separates claims from results and names a relevant limit/question.
1: Uses some accurate evidence but misses a source, limit or comparison.
0: Relies mainly on claims or misstates decision-changing evidence.
ADAPT · Adaptation
2: Revises or defends the recommendation explicitly because of new evidence/constraints.
1: Changes the answer with only a partial link to the new evidence.
0: Ignores the changed evidence or gives no reasoned adaptation.
FP · Final Performance
2: Gives an independent, balanced decision with condition, monitoring signal and fallback.
1: Decision is understandable but needs a prompt or misses one required element.
0: Cannot complete a coherent evidence-based recommendation.
Target: 5/6 overall, EVD = 2 and no zero. Score the first unsupported performance, give one focused correction, then rerun only the weakest criterion.
Teacher Help · Stage 6
Play A02 once for gist and once for evidence. Hide all model language. Score the first briefing, give one evidence correction and one language correction, then run a focused retry only.
Progress evidence
Before
May repeat a claim or choose an option from one attractive result.
After
Can compare sources, balance benefit and limitation, and revise a conditional recommendation.
Next target
Communicate complex uncertainty to a non-specialist audience.
คำอธิบายภาษาไทย · เปิดเมื่อจำเป็นเท่านั้น
แยก “คำกล่าวอ้าง” ออกจาก “ผลที่วัดได้” ทุกครั้ง เปรียบเทียบทั้งผลบวก ผลที่ใกล้เคียงกัน และข้อจำกัด ระบุสิ่งที่ยังไม่รู้ แล้วใช้คำแนะนำแบบมีเงื่อนไข พร้อมสิ่งที่จะติดตามและแผนสำรอง
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