Organ-allocation debate
Open your materials, follow the steps, then turn in your work.
Argue how a limited supply of donor organs should be allocated among waiting patients.
1. Open your materials
2. Start the work
Read the organ-allocation briefing in the PLTW course shell and list the factors used to rank patients.
Show all 5 required steps
- Read the organ-allocation briefing in the PLTW course shell and list the factors used to rank patients.
- Pick a stakeholder role: patient, surgeon, ethicist, or transplant board member, and write your opening claim.
- Defend one allocation factor such as urgency, match quality, or wait time using one piece of evidence.
- Write a rebuttal to a factor a classmate role would prioritize over yours.
- Record the class consensus ranking and your personal stance with a reason.
Lost your place? Lost your place? Pick your stakeholder role and write your opening claim in one sentence, naming the single factor you are defending.
Check your work before submitting
- You'll be able to name the factors used to allocate scarce donor organs.
- You'll be able to defend an allocation priority and answer an objection.
3. Turn in your work
DueCheck Schoology- Hand in
- Written final stance with one-sentence reason, plus a one-sentence rebuttal to the competing stakeholder.
How to submit and name your file
Use the submission route shown on today's page.
In Schoology, open your course and the assignment for this lesson. Attach your file, select Submit, and check that it appears in the submission.
PDF upload helpYou get two school days for every day you were absent, so this deadline moves with you.
How this lesson connects
Keep using what you learned last class: Sunlight damages DNA in every cell it reaches, so whether that damage becomes cancer depends on repair capacity and on the dose delivered. Today: Scarcity forces a choice between competing fairness claims, so the allocation rule a board picks determines who is harmed by it.
Optional: listen or watch a unit review▸
Need help? Warm-up, timing, and directions▸
💡 Big idea: Scarcity forces a choice between competing fairness claims, so the allocation rule a board picks determines who is harmed by it.
- 0-8Read allocation briefing; list ranking factors silently
- 8-15Choose stakeholder role; write opening claim
- 15-30Build evidence for your chosen factor
- 30-50Pair debate: swap claims, write rebuttal
- 50-65Class consensus vote and discussion
- 65-80Record final stance with reason; async post if remote
- • There are far more patients who need organs than organs available.
- • Someone has to decide who gets one, and that decision is both medical and ethical.
- • Today you will role-play four stakeholders who each think differently about who should be first.
- • This connects directly to the Biotech Research and Lab SOPs emphasis areas of the 072130 WebXam.
- • Allocation systems weigh HLA compatibility, medical urgency, and time on the waiting list.
- • No single factor dominates; every ranking embeds a value judgment.
- • The transplant board must be able to defend its decision to all stakeholders.
PLTW connection and today's work
Open the organ-allocation debate activity in myPLTW for Unit 4 How to Prevail When Organs Fail, Lesson 4.3 Transplant, Activity 4.3.1 Who Should Receive the Organ, and review the CER rubric.
Today's stopping point: Cancer-treatment recommendation memo should be submitted; this debate opens Unit 4 reserve content.
PLTW activity titles identify the course connection. If your account will not open, use the posted materials for today and tell Mr. Mendoza. Do not mark an online activity complete unless you completed it.
Course connection
- Activity 4.3.1 Who Should Receive the Organ?
Use the turn-in directions at the top of this page. Do not create a second submission unless your teacher asks for one.
Show another explanation or a smaller first step
Need help? Choose a starting point
Lesson resources: reading, slides, and vocabulary▸
The deck carries the prior idea forward, lets you inspect an analogy, maps the rule to biology, and ends with the same evidence decision and exit ticket used on this page.
Generated from this lesson's canonical data with a red-team citation check.
Sunlight damages DNA in every cell it reaches, so whether that damage becomes depends on repair capacity and on the dose delivered.
Scarcity forces a choice between competing fairness claims, so the allocation rule a board picks determines who is harmed by it.
A review board sorts scientific evidence, stakeholder needs, possible benefits, possible burdens, and uncertainty before choosing a policy.
- Which statements are scientific evidence?
- Which statements express a value or priority?
- Who receives the benefit and who carries the burden?
Use science to estimate consequences, then state the value judgment and tradeoff that determine the decision.
A review-board model organizes reasoning but does not make one ethical principle automatically outweigh every other principle.
- • Evidence cards map to source-backed findings.
- • Stakeholder cards map to affected people and priorities.
- • The recommendation maps to an explicit tradeoff with a named uncertainty.
Driving question: Two patients need the same kidney. One is sicker, one is a better match. Who gets it?
What you already know: Sunlight damages DNA in every cell it reaches, so whether that damage becomes depends on repair capacity and on the dose delivered.
New idea: Scarcity forces a choice between competing fairness claims, so the allocation rule a board picks determines who is harmed by it.
Visual or model: F1. F1. A lesson illustration or teaching diagram for Organ-allocation debate. Use it with E1-E3; it is a model or context image, not experimental or patient data. What to notice: Trace the labeled testing, treatment, or biological process and identify where evidence limits the decision.
- Observe or measure the relevant feature in organ-allocation debate.
- Organize the observation with a stable evidence ID.
- Apply this rule: Use science to estimate consequences, then state the value judgment and tradeoff that determine the decision.
- Choose the option the evidence supports and state the limit of the conclusion.
Real biomedical example: Two patients need the same kidney. One is sicker, one is a better match. Who gets it?
What the evidence supports: E1-E3 and F1 support the daily take-home when the response meets the stated success criteria.
What it cannot prove: The package does not support claims beyond this lesson's or any real patient diagnosis.
- • : A small, circular piece of DNA that lives apart from a bacterium's main and is used in the lab to carry a chosen gene into a cell.
- • recombinant DNA: Use the lesson context and glossary entry to explain recombinant DNA in your own words.
- • : The process of separating a target molecule, such as a or DNA, away from everything else in a mixture to get a clean sample.
- • : A process that filters waste and excess fluid from blood across a semipermeable membrane, used clinically when the kidneys cannot do this job.
- • HLA: Human antigens, proteins on cell surfaces that mark cells as self, helping the immune system spot foreign cells and guiding transplant matching.
- • scaffold: A supportive framework, such as an engineered structure in repair or a base molecule in chemistry, that other parts build onto or grow within.
- • transplant: The transfer of a healthy organ, , or cells from a donor into a patient to replace a part that has failed.
Use it now: Choose one decision option. Cite E1 and E3, then explain how the rule connects the evidence to your choice.
Go further, optional: The source links below are optional enrichment. Every fact required for today's local evidence decision appears in this lesson package.
A defensible biomedical decision separates scientific evidence from value judgments, identifies who may benefit or be burdened, and states the uncertainty and tradeoffs that remain.
Limit: Scientific evidence can inform the options and likely consequences, but it cannot choose a single value-neutral answer.
Use science to estimate consequences, then state the value judgment and tradeoff that determine the decision.
Limit: A review-board model organizes reasoning but does not make one ethical principle automatically outweigh every other principle.
You can name the factors used to allocate scarce donor organs.
Limit: E3 defines the classroom product or success criterion. It is not independent scientific evidence and cannot justify a clinical or causal claim.
PLTW-GEND-2026-11-30 · Simulated classroom evidence scenario
Your role: medical interventions team member
Decision: Your team must decide what the evidence from organ-allocation debate supports before submitting the exit response named on today's page.
- • Present the most polished allocation argument as the correct one, since the science points to a single fair answer.
- • Wait on the ranking until you know what happens to the patients your priority moves down the list.
- • Name the allocation factors you used, then state the value judgment behind your priority and answer one objection.
Response: State one choice, cite at least two evidence IDs, explain the rule that connects them, and add one limitation. Submit it as the exit response.
Claim ceiling: Today's evidence supports a classroom claim about organ-allocation debate. It cannot prove causation, diagnose a real patient, or justify action outside this room.
Reason for review: Your team must decide what the evidence from organ-allocation debate supports before submitting the exit response named on today's page.
Context: Every allocation rule encodes a value judgement, so a transplant board is not discovering the fair answer but choosing which fairness it will defend in public.
- • T1: Read the organ-allocation briefing in the PLTW course shell and list the factors used to rank patients.
- • T2: Pick a stakeholder role: patient, surgeon, ethicist, or transplant board member, and write your opening claim.
- • T3: Defend one allocation factor such as urgency, match quality, or wait time using one piece of evidence.
- • T4: Write a rebuttal to a factor a classmate role would prioritize over yours.
- • T5: Record the class consensus ranking and your personal stance with a reason.
- • E1: A defensible biomedical decision separates scientific evidence from value judgments, identifies who may benefit or be burdened, and states the uncertainty and tradeoffs that remain.
- • E2: Use science to estimate consequences, then state the value judgment and tradeoff that determine the decision.
- • E3: You can name the factors used to allocate scarce donor organs.
Measurements: No patient measurement is supplied unless it appears explicitly in E1-E3 or F1. Do not invent a value.
Figure finding: Teaching diagram for Organ-allocation debate. Trace the labeled testing, treatment, or biological process and identify where evidence limits the decision. This is a teaching model, not patient or experimental data.
Uncertainty: This is a composite classroom scenario. Missing history, measurements, or confirmation tests remain unknown and limit the conclusion.
- • The solution must address the stated need in organ-allocation debate.
- • The decision must be supported by E1-E3.
- • The final product must make the success criteria visible.
- • Complete the work inside the 80-minute block.
- • Use only supplied or teacher-approved materials and evidence.
- • Do not trade , accessibility, or privacy for speed.
- • and evidence quality: must pass before scoring other criteria.
- • User need and effectiveness: highest scored criterion.
- • Time, cost, and ease of use: compare only after and effectiveness pass.
Test evidence: For each option, record the E1-E3 result that supports or fails each criterion. Do not assign a score without a named observation.
- Version or option tested
- Criterion met or missed
- Evidence ID and result
- Revision made
- Reason for the revision
- Need and user
- Criteria and constraints
- Chosen option and evidence
- Test result
- Revision and reason
Students often think Students assume there is an objective formula and that disagreement means somebody misapplied it.. The trap: The factors are objective; their weighting is not. Ranking urgency above match quality is a moral choice about whether to prioritise the sickest or the likeliest to succeed, and no amount of data settles it.
1. Decision or claim I am testing: ____
2. Evidence ID and exact observation: ____
3. Second evidence ID and exact observation: ____
4. Rule that connects the evidence to my claim: ____
5. Strongest alternative or tradeoff: ____
6. Limitation or missing evidence that controls my confidence: ____
7. Revision I would make if the missing evidence changed: ____
This model shows the level of evidence and organization needed to complete: A blank structure for organizing the assigned response. It contains no claim, ranking, calculation, data interpretation, or recommendation from today's task.
- Name the prompt or task.
- Answer it directly with the key evidence.
- Check that the response matches the requested format.
Keep the structure. Replace the question, facts, measurements, and evidence. Then recheck units, vocabulary, and whether the conclusion goes beyond the evidence.
Also due today: Hand in your exit-ticket card, or turn it in on Schoology under the Unit 4 Organ-Allocation Debate exit-ticket assignment.
- CER:
- Claim, Evidence, Reasoning: make a claim, back it with evidence, explain your reasoning.
- SOP:
- Standard Operating Procedure, the exact steps to follow (especially in a lab).
- Tracker:
- Your PLTW progress log where you record completed evidence.
- myPLTW:
- The PLTW course site where you do the online activities. Find it in Clever with your Microsoft sign-in, right next to Schoology.
Tap the speaker to hear a term. Add two of these to your notebook glossary with a definition and an example in your own words.
Pick just 2 or 3 words from today and make them yours: write what each one means in your own words, name the context clue or evidence that helped, then give one example from what you actually did in Organ-allocation debate. Try your own words first; the glossary is there if you get stuck. This is voluntary and counts as extra credit, so keep it short.
Saved on this device. Show Mr. Mendoza or add these to your notebook glossary to claim the extra credit.
Play the cold open at the start of the unit to set the scene. Each recording is AI-generated and simulated (fictional callers, no real people or student data).
Classroom documents for this lesson are posted in Schoology. Open Clever, then Schoology, and find each one by the name shown on its card.
Use this for optional reserve or extra-credit work after the required class lesson is complete.
Placement rationale
Matched Organ failure overview and by path:Medical-Interventions/Unit-4_When-Organs-Fail/4.2_Organ-Failure; keywords:organ failure, kidney, dialysis. Score 146. Visibility: student-schoology (student-facing resource; link through Schoology rather than local path).
Use this for optional reserve or extra-credit work after the required class lesson is complete.
Placement rationale
Matched Organ failure overview and by path:Medical-Interventions/Unit-4_When-Organs-Fail/4.2_Organ-Failure; keywords:organ failure, kidney. Score 142. Visibility: student-schoology (student-facing resource; link through Schoology rather than local path).
Use this for optional reserve or extra-credit work after the required class lesson is complete.
Placement rationale
Matched Organ failure overview and by path:Medical-Interventions/Unit-4_When-Organs-Fail/4.2_Organ-Failure; keywords:kidney, renal. Score 138. Visibility: student-schoology (student-facing resource; link through Schoology rather than local path).
Sign in to Clever with your district Microsoft account to open Schoology or myPLTW. Follow today's posted steps. If myPLTW will not open, use the posted alternative and tell Mr. Mendoza. Turn in your completed work through the Schoology assignment.
Practice: try a question, then check your answer▸
Claim ceiling for this check: Today's evidence supports a classroom claim about organ-allocation debate. It cannot prove causation, diagnose a real patient, or justify action outside this room.
A board ranks the sickest patient first. What is the predictable cost of that rule?
Write an answer and pick a confidence to unlock the key.
Fast retrieval with instant answers, not the commit-then-reveal check above. Try each from memory first: write what you remember about the earlier units, then check yourself here.
Missed class or ready for more?▸
Run this before you touch the bench. It is built from the real lab procedure, so the decisions you make here are the ones you will make with the equipment in your hands. This lesson has more than one, and they cover different skills.
What today's skills lead to. These are real health-science careers this course builds toward. Tap one to see, on the US Department of Labor's O*NET site, what the job actually involves, what it pays, and how fast it is growing.
Post a written organ-allocation argument from your stakeholder role in the course shell discussion, then reply to one classmate proposing a different priority ranking.
MedlinePlus: Organ TransplantationUse the submission route shown on today's page.
Class still runs. Complete the online activity above (it's self-guided). Need the concept taught without a teacher? Use this authoritative explainer:
MedlinePlus: Organ TransplantationYou've passed Unit 2, so the optional extra-credit track is open. Complete reserved-unit work from home, including virtual labs, for extra credit. Each item shows its correct submission route.
Open the extra-credit track- CompleteEvery required part of the artifact is present, nothing left blank.
- AccurateThe science and the data are correct and match the evidence.
- Scientific reasoningYou explain your claim with evidence and reasoning (CER), not just an answer.
- Professional communicationClear, organized, labeled, and written the way a clinician or scientist would.
- SubmittedGo to Schoology to turn this in. Submit one PDF. Put your first and last name in the document header. Name the file: FirstName LastName - Assignment Title - YYYY-MM-DD.pdf. If you cannot get in, see Mr. Mendoza. Do not skip the work.
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