Allocation CER
Open your materials, follow the steps, then turn in your work.
Write a claim-evidence-reasoning argument recommending which patient should receive a donor kidney.
1. Open your materials
2. Start the work
Review your renal data, simulation results, and compatibility table.
Show all 5 required steps
- Review your renal data, simulation results, and compatibility table.
- Make a claim naming which waiting patient should receive the available kidney.
- Cite two pieces of evidence such as crossmatch score and urgency.
- Reason through why your evidence outweighs the competing patient's case.
- Submit your allocation CER on the class site.
Lost your place? Reopen today's Allocation CER record. Find the last completed evidence ID, check it against the claim ceiling, and continue with the first unfinished step rather than restarting the whole task.
Check your work before submitting
- You'll be able to recommend a recipient using a CER structure.
- You'll be able to justify the choice with matching and urgency data.
3. Turn in your work
DueCheck Schoology- Hand in
- Allocation CER recommending a specific patient for a donor kidney, citing crossmatch score and urgency data, with reasoning explaining why competing evidence is outweighed.
How to submit and name your file
Use the submission route shown on today's 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: Organ-replacement decisions integrate organ function, compatibility, urgency, expected benefit, risks, and organ-specific allocation rules rather than relying on one laboratory value or matching feature. Today: 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.
Optional: listen or watch a unit review▸
Need help? Warm-up, timing, and directions▸
💡 Big idea: 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.
- 0-10Review renal data, simulation results, and compatibility table
- 10-22Write claim: name the patient and state the recommendation
- 22-45Write evidence section: cite two quantitative data points
- 45-62Write reasoning: explain why your evidence outweighs competing case
- 62-72Revise for clarity and precision
- 72-80Submit allocation CER to the class site
- • You have all the data you need: renal values, scores, and compatibility rankings.
- • Now you have to commit to a recommendation and defend it in writing.
- • CER is a professional communication format used in medicine, science, and policy.
- • This is the capstone of the transplant unit and a direct WebXam writing-skill exercise.
- • A strong CER claim is specific: name the patient, name the organ, state the recommendation.
- • Evidence must be quantitative where possible ( score, GFR, wait time).
- • Reasoning explains why the evidence outweighs competing data from the other patient's case.
PLTW connection and today's work
Open Activity 4.3.3 Kidney Donation in myPLTW and confirm it is marked complete before you submit your allocation CER.
Today's stopping point: Compatibility table should be done (Thursday); organ-transplant unit fully closed today.
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.
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.
Organ-replacement decisions integrate organ function, compatibility, urgency, expected benefit, risks, and organ-specific allocation rules rather than relying on one laboratory value or matching feature.
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.
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: Write a claim-evidence-reasoning argument recommending which patient should receive a donor kidney.
What you already know: Organ-replacement decisions integrate organ function, compatibility, urgency, expected benefit, risks, and organ-specific allocation rules rather than relying on one laboratory value or matching feature.
New idea: 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.
Visual or model: F1. F1. A lesson illustration or teaching diagram for Allocation CER. 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 allocation CER.
- 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: Today the medical interventions team uses Allocation CER to make a bounded evidence decision. Scientific evidence can inform the options and likely consequences, but it cannot choose a single value-neutral answer.
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.
- • : The kidney's microscopic filtering unit that cleans the blood, reabsorbs needed substances, and forms urine.
- • : 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.
- • : A lab test that checks whether a recipient's immune system will attack a donated organ by mixing recipient serum with donor cells.
- • : The immune system's attack on a transplanted organ or that it recognizes as foreign rather than part of the body.
- • : A reduced ability of the immune system to fight infection, caused by disease, medication, or treatment such as after an organ transplant.
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.
U.S. Department of Health and Human Services is the source this lesson's claim is checked against: The Belmont Report
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 recommend a recipient using a CER structure.
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-2026-12-17 · Simulated classroom evidence scenario
Your role: medical interventions team member
Decision: Your team must decide what the evidence from allocation CER supports before submitting the claim-evidence-reasoning response named on today's page.
- • Polish the CER until it reads well, because a strong clear argument is what makes the recommendation trustworthy.
- • Gather the expected benefit after transplant for each candidate before writing, since matching and urgency alone cannot separate the candidates.
- • Recommend one patient with a claim, the matching and urgency data as evidence, and the value judgment stated openly.
Response: State one choice, cite at least two evidence IDs, explain the rule that connects them, and add one limitation. Submit it as the claim-evidence-reasoning response.
Claim ceiling: Today's evidence supports a classroom claim about allocation CER. 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 allocation CER supports before submitting the claim-evidence-reasoning response named on today's page.
Context: Today the medical interventions team uses Allocation CER to make a bounded evidence decision. Scientific evidence can inform the options and likely consequences, but it cannot choose a single value-neutral answer.
- • T1: Review your renal data, simulation results, and compatibility table.
- • T2: Make a claim naming which waiting patient should receive the available kidney.
- • T3: Cite two pieces of evidence such as score and urgency.
- • T4: Reason through why your evidence outweighs the competing patient's case.
- • T5: Submit your allocation CER on the class site.
- • E1: U.S. Department of Health and Human Services is the source this lesson's claim is checked against: The Belmont Report
- • E2: Use science to estimate consequences, then state the value judgment and tradeoff that determine the decision.
- • E3: You can recommend a recipient using a CER structure.
Measurements: Use only the measurements, units, graph, or counts supplied in today's task. No additional patient measurement is implied.
Figure finding: Teaching diagram for Allocation CER. 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.
Rate or percent = part / comparison total x 100%. Percent change = (new - comparison) / comparison x 100%.
If 18 of 60 records meet a condition, the frequency is 18 / 60 x 100% = 30%.
Name the comparison total. A percent describes the supplied group and does not automatically predict an individual's outcome.
Use today's supplied counts to calculate one rate, risk, frequency, or percent change. Show the denominator and interpretation.
- • The solution must address the stated need in allocation CER.
- • 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 A polished answer about Allocation CER is trustworthy even when its evidence source, comparison, or limitation is missing.. The trap: Presentation quality cannot raise the evidence level. Scientific evidence can inform the options and likely consequences, but it cannot choose a single value-neutral answer.
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.
- Write one defensible claim.
- Choose specific evidence that supports the claim.
- Explain the scientific rule that connects the evidence to the claim.
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: turns in the allocation CER on Schoology under today's CER 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 Allocation CER. 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.
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 Transplant matching and allocation ethics by path:Medical-Interventions/Unit-4_When-Organs-Fail/4.3_Transplant; keywords:transplant, hla, allocation, organ. Score 158. 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 Transplant matching and allocation ethics by path:Medical-Interventions/Unit-4_When-Organs-Fail/4.3_Transplant; keywords:transplant, allocation, organ. 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 Transplant matching and allocation ethics by path:Medical-Interventions/Unit-4_When-Organs-Fail/4.3_Transplant; keywords:transplant, allocation, organ. Score 146. 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 allocation CER. It cannot prove causation, diagnose a real patient, or justify action outside this room.
A student makes a certain conclusion about Allocation CER from one classroom result. What must the student add before the conclusion is defensible?
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.
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.
Today is individual work you can do from home: complete the same target above, then submit your CER.
Go 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.
Class still runs. Complete the online activity above (it's self-guided). Need the concept taught without a teacher? Use this authoritative explainer:
MedlinePlus: DialysisYou'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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