1. Benefit
In the simulated study, which group had more improvement?
Help beside the question
Read or point first. Compare 12/20 with 6/20.
Answer guidance
Treatment group.
Stem cells: a balanced DISCUSS response
Learning objective
Construct a balanced discussion using evidence, ethical considerations and a qualified conclusion.
40 minutes · one route · start from what you show today. Point, speak, sign, draw, write or direct an adult. An adult may read or scribe your exact words. Choose one route; do not complete all three.
LAUNCH · GCSE BIOLOGY FOUNDATION · W11 · LESSON 3 · 4 MINUTES
Four clues to start
Supported · 4 questions
2. Risk
Which group had more adverse events?
Help beside the question
Read or point first. Compare 4/20 with 1/20.
Answer guidance
Treatment group.
3. Ethics
Is “Who should consent?” a percentage calculation or an ethical question?
Help beside the question
Read or point first. It concerns what ought to be allowed.
Answer guidance
An ethical question.
4. Discuss
Does a balanced discussion require you to disclose a personal belief?
Help beside the question
Read or point first. You may present a reasoned position without personal disclosure.
Answer guidance
No.
Standard · 4 questions
1. Benefit
In the simulated study, which group had more improvement?
Help beside the question
Compare 12/20 with 6/20.
Answer guidance
Treatment group.
2. Risk
Which group had more adverse events?
Help beside the question
Compare 4/20 with 1/20.
Answer guidance
Treatment group.
3. Ethics
Is “Who should consent?” a percentage calculation or an ethical question?
Help beside the question
It concerns what ought to be allowed.
Answer guidance
An ethical question.
4. Discuss
Does a balanced discussion require you to disclose a personal belief?
Help beside the question
You may present a reasoned position without personal disclosure.
Answer guidance
No.
Stretch · 4 questions
1. Benefit
In the simulated study, which group had more improvement?
Help beside the question
Compare 12/20 with 6/20.
Answer guidance
Treatment group.
2. Risk
Which group had more adverse events?
Help beside the question
Compare 4/20 with 1/20.
Answer guidance
Treatment group.
3. Ethics
Is “Who should consent?” a percentage calculation or an ethical question?
Help beside the question
It concerns what ought to be allowed.
Answer guidance
An ethical question.
4. Discuss
Does a balanced discussion require you to disclose a personal belief? Give a reason.
Help beside the question
You may present a reasoned position without personal disclosure.
Answer guidance
No. Accept a scientifically correct reason that uses the relevant model or evidence.
LAUNCH · GCSE BIOLOGY FOUNDATION · W11 · LESSON 3 · 4 MINUTES
Choose a first idea
Which opening fits DISCUSS?
Think or discuss first. No answer chosen yet.
LAUNCH · GCSE BIOLOGY FOUNDATION · W11 · LESSON 3 · 5 MINUTES
Watch the model
In a simulated study, did more people improve in the treatment group than in the comparison group?
Worked explanation · reveal after thinking
The 20-person groups and all outcomes are simulated for arithmetic and evaluation. Improvement and adverse events may occur in the same person. They are not mutually exclusive outcomes. Do not diagnose, recommend treatment, ask for family histories or require pupils to disclose a personal ethical view.
32-second silent captioned explainer · optional
No sound or autoplay. Use instead of part of the modelling time, not as an extra activity.
Full transcript
Ask a bounded question. In a simulated study, did more people improve in the treatment group than in the comparison group?
Read the denominator. Twelve of twenty improved in the treatment group. Six of twenty improved in the comparison group.
Check possible harm. Four of twenty had an adverse event in the treatment group; one of twenty in the comparison group.
Keep limits visible. The groups are small and follow-up lasts eight weeks. These invented data do not establish long-term safety or a cure.
LAUNCH · GCSE BIOLOGY FOUNDATION · W11 · LESSON 3 · 5 MINUTES
Sort using the evidence
Choose a card, then choose a group. Explain one placement using its clue.
Drag, or use Tab and Enter to select a card and its group. Pointing or adult-directed placement works too.
Scientific evidence
Ethical consideration
Unsupported or unfair claim
Choose a card first.
Read the card clues
60% versus 30% improved: A numerical comparison in the simulated data.
20% versus 5% had an adverse event: A safety comparison in the simulated data.
Participants need informed consent: This concerns autonomy and understanding.
Access to treatment should be considered: This concerns fairness and distribution.
Anyone who disagrees is ignorant: This attacks people rather than evaluating reasons.
A short study proves permanent safety: The conclusion exceeds the follow-up evidence.
Would a small change help? · optional
Ask the lesson teacher for clearer labels, fewer cards, reading help, an adult-directed model or more thinking time. Your teacher will explain what can change, try it and check its effect. Ask privately or pass; no extra form is needed.
Group explanations · reveal after sorting
60% versus 30% improved → Scientific evidence. A numerical comparison in the simulated data.
20% versus 5% had an adverse event → Scientific evidence. A safety comparison in the simulated data.
Participants need informed consent → Ethical consideration. This concerns autonomy and understanding.
Access to treatment should be considered → Ethical consideration. This concerns fairness and distribution.
Anyone who disagrees is ignorant → Unsupported or unfair claim. This attacks people rather than evaluating reasons.
A short study proves permanent safety → Unsupported or unfair claim. The conclusion exceeds the follow-up evidence.
LAUNCH · GCSE BIOLOGY FOUNDATION · W11 · LESSON 3 · 4 MINUTES
Work through one example
Worked example
Improve the sentence: “The cells worked in a dish, so the treatment must be safe.”
Step 1
Keep the observation: cells showed a useful feature in a dish.
Step 2
Remove the unsupported jump to safety in people.
Step 3
Add the gap: human benefits and harms still need study.
Step 4
Conclude: the finding may justify further research, not a safety guarantee.
LAUNCH · GCSE BIOLOGY FOUNDATION · W11 · LESSON 3 · 4 MINUTES
Build, then improve one paragraph
Use B–R–U–J: benefit, risk, uncertainty, judgement. Discuss possible stem-cell use using the simulated data; do not debate anyone’s personal medical history.
| Move | Evidence or prompt |
|---|---|
| Benefit | 12/20 improved versus 6/20 |
| Risk | 4/20 adverse events versus 1/20 |
| Uncertainty | 20 per group; eight-week follow-up |
| Judgement | What further evidence or safeguards would be needed? |
Ethics reading and contrasting considerations
Embryonic stem-cell research can involve using early embryos; views differ about their moral status and the acceptability of using them for possible health benefits. Informed consent, fairness and careful evidence matter. Adult stem cells avoid that particular embryo-source concern but usually have more limited potential. You may explain contrasting arguments without stating a personal belief.
Worked explanation · reveal after thinking
The simulated treatment group improved more often (60% versus 30%), suggesting possible benefit. However, adverse events were also more common (20% versus 5%). Small groups and short follow-up leave uncertainty. A larger, well-controlled study with informed consent and longer follow-up would be needed before broader claims.
LAUNCH · GCSE BIOLOGY FOUNDATION · W11 · LESSON 3 · 10 MINUTES
Show your understanding
Supported · choose one route
1. Plan
Select one benefit, one risk and one uncertainty for your discussion.
Make three boxes: benefit / risk / unknown. Place one evidence card in each before speaking or writing.
2. Discuss
Produce a short balanced response, spoken, drawn, scribed or written.
Use: a possible benefit is ___. However, a risk is ___. We still do not know ___. Therefore ___.
3. Refine
Change one sentence that is too absolute.
Find an absolute word: always / safe / cure. Replace it with a claim the evidence can support.
Standard · choose one route
1. Plan
Select one benefit, one risk and one uncertainty for your discussion.
Use B–R–U–J; pointing to cards is valid.
2. Discuss
Produce a short balanced response, spoken, drawn, scribed or written.
Use because / however / therefore.
3. Refine
Change one sentence that is too absolute.
Replace always, no risk or cure with a precise supported claim.
Stretch · choose one route
1. Plan
Select one benefit, one risk and one uncertainty for your discussion.
Use B–R–U–J; pointing to cards is valid.
2. Discuss
Produce a short balanced response, spoken, drawn, scribed or written.
Use because / however / therefore.
3. Weigh evidence and values
Can two people accept the same data but reach different ethical judgements? Explain respectfully.
Evidence and the importance placed on different values are not identical.
LAUNCH · GCSE BIOLOGY FOUNDATION · W11 · LESSON 3 · 4 MINUTES
Two small checks
Supported · 2 questions
1. Build
Name three ingredients of an evidence-based DISCUSS response.
Help beside the question
Use: my answer is ___ because ___. Point to a model or card first. Benefit, risk and a justified conclusion; include uncertainty.
Answer guidance
A supported benefit, a risk or limitation, and a qualified conclusion.
2. Conclude
Complete: “These simulated results suggest…, but…”.
Help beside the question
Use: my answer is ___ because ___. Point to a model or card first. Use a numerical comparison and a limitation.
Answer guidance
For example: a possible improvement benefit, 60% versus 30%, but small groups and short follow-up leave uncertainty.
Standard · 2 questions
1. Build
Name three ingredients of an evidence-based DISCUSS response.
Help beside the question
Benefit, risk and a justified conclusion; include uncertainty.
Answer guidance
A supported benefit, a risk or limitation, and a qualified conclusion.
2. Conclude
Complete: “These simulated results suggest…, but…”.
Help beside the question
Use a numerical comparison and a limitation.
Answer guidance
For example: a possible improvement benefit, 60% versus 30%, but small groups and short follow-up leave uncertainty.
Stretch · 2 questions
1. Build
Name three ingredients of an evidence-based DISCUSS response.
Help beside the question
Benefit, risk and a justified conclusion; include uncertainty.
Answer guidance
A supported benefit, a risk or limitation, and a qualified conclusion.
2. Weigh evidence and values
Can two people accept the same data but reach different ethical judgements? Explain respectfully.
Help beside the question
Evidence and the importance placed on different values are not identical.
Answer guidance
Yes. They may agree about outcomes but weigh consent, embryo status, fairness or acceptable risk differently. Their reasoning should still represent the science accurately.
Keep one useful science explanation. No additional participation record is required.