Infection-control CER
Students write a CER recommending an infection-control plan supported by chain-of-infection evidence.
CER naming the highest-priority infection-control intervention, citing chain-of-infection and patient-context evidence, predicting the expected effect, and stating assumptions and limitations.
- 1Do thisStudents write a CER recommending an infection-control plan supported by chain-of-infection evidence.
- 2Use this resource
- 3Submit thisCER: CER naming the highest-priority infection-control intervention, citing chain-of-infection and patient-context evidence, predicting the expected effect, and stating assumptions and limitations.
- 4Submit it here
- 1CMSD website. Go to clevelandmetroschools.org and click the Clever button.
- 2Clever. Clever opens. Sign in if it asks.
- 3Microsoft (district) login. Use your district Microsoft account (the one for school).
- 4Schoology. Open Schoology, then your class, then Assignments, and find the file named below.
The file to submit is named: Principles of Biomedical Technology (Principles of Biomedical Science) › Unit 3.1 Nosocomial Nightmare: Hospital-acquired infections, chain of infection, pathogens, immune response, infection control. › CEROpen Schoology
Read to prepare for today
Vetted sources picked for today's question. Skim these before you take a position or start the work, so your argument and evidence are grounded.
- 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 — you open it through Schoology.
Minute-by-minute · 80-minute block
💡 Big idea: An infection-control CER is not a list of hygiene tips: it is a targeted argument that names a mechanism, predicts an outcome, and acknowledges uncertainty.
- 0-8 minReview Wednesday case analysis; confirm highest-priority chain link and proposed control.
- 8-20 minWrite the claim: one sentence naming the highest-priority infection-control intervention.
- 20-42 minWrite evidence: cite chain link, patient context, and transmission-route data.
- 42-60 minWrite reasoning: link each evidence point to the claim and predict the expected effect.
- 60-72 minAdd assumptions and limitations section.
- 72-80 minPeer review: confirm claim is specific, prediction is present, limitation is stated.
- • Yesterday you found the weakest link; today you write the formal argument for why your control is the right choice.
- • The prediction section is what separates a CER from a case summary: you must say what you expect to happen.
- • WebXam 072110 Biotechnology strand tests causal reasoning, not just factual recall.
- • Name your assumption explicitly: if it turns out to be wrong, your recommendation may also be wrong.
- 1State a claim naming the highest-priority control for the scenario.
- 2Cite evidence from the chain of infection and the patient context.
- 3Explain reasoning that links the control to interrupted transmission.
- 4Predict the expected effect on infection risk if the control is applied.
- 5Identify assumptions and limitations affecting the recommendation.
- • Write a CER with a clear control claim and chain-based evidence.
- • State the expected effect and at least one limitation.
- • The highest-priority control is the one that breaks the most vulnerable or most accessible link in the chain.
- • Predicting the expected effect requires reasoning from mechanism, not just assertion.
- • Every control plan has assumptions; stating them is the difference between a recommendation and a claim.
Your PLTW work today
Unit 3.1 Nosocomial Nightmare: Hospital-acquired infections, chain of infection, pathogens, immune response, infection control. · Infection-control CER
Day 4 of this lesson. Open this exact section in myPLTW (reached through Schoology), then do the work below.
Do this: Open myPLTW and find the Lesson 3.1 Nosocomial Nightmare infection-control recommendation or CER activity to use as a writing scaffold.
Submit any platform prompts before shifting to independent CER writing.
Platform prompts done in first 15 minutes; full CER complete before end of period.
Submitted CER in Schoology is the primary evidence.
All PLTW activities are completed inside the PLTW course environment — this page only gives direction. Submit producibles on Schoology.
Today's PLTW tracker
Check things off as you work, then submit. This tells Mr. Mendoza how you're doing so he can help the class. It does not replace turning in your producible on Schoology.
Use the code Mr. Mendoza gave you, not your name. Saved on this device.
Unit 3.1 Nosocomial Nightmare: Hospital-acquired infections, chain of infection, pathogens, immune response, infection control. · Infection-control CER
Open myPLTW and find the Lesson 3.1 Nosocomial Nightmare infection-control recommendation or CER activity to use as a writing scaffold.
Platform prompts done in first 15 minutes; full CER complete before end of period.
This is how Mr. Mendoza sees the class keeping pace with PLTW. Be honest, it only helps if it is accurate.
🎯 Students write a CER recommending an infection-control plan supported by chain-of-infection evidence.
- State a claim naming the highest-priority control for the scenario.
- Cite evidence from the chain of infection and the patient context.
- Explain reasoning that links the control to interrupted transmission.
- Predict the expected effect on infection risk if the control is applied.
- Identify assumptions and limitations affecting the recommendation.
CER: CER naming the highest-priority infection-control intervention, citing chain-of-infection and patient-context evidence, predicting the expected effect, and stating assumptions and limitations.
Submit on SchoologyUpload by 11:29 PM for full credit.
| Task | Who |
|---|---|
| State a claim naming the highest-priority control for the scenario. | _______ |
| Cite evidence from the chain of infection and the patient context. | _______ |
| Explain reasoning that links the control to interrupted transmission. | _______ |
| Predict the expected effect on infection risk if the control is applied. | _______ |
| Identify assumptions and limitations affecting the recommendation. | _______ |
Working solo? Put your own name in "Who" for every row.
- Write a CER with a clear control claim and chain-based evidence.
- State the expected effect and at least one limitation.
Resources & readings
Hand-picked materials for this lesson. Class file items open the document directly; the rest are vetted readings and interactives from other biomedical programs.
This unit's vocabulary
Tap the speaker to hear a term. Weekly vocabulary task: add two of these terms to your notebook glossary with a definition and an example in your own words.
WebXam practice
Cumulative WebXam review
A quick mixed-review pulling questions from earlier units plus today, so the WebXam material stays fresh.
Where this leads — careers
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.
What to do if you were absent
Today is individual PLTW work, so do exactly what we did in class, from home: complete the same PLTW target above, then submit your CER.
Open Schoology (CMSD) and keep goingHow to get there: open the CMSD website, click Clever, sign in with your Microsoft (district) account, then open Schoology from Clever.
Class still runs. Complete the online activity above (it's self-guided). Need the concept taught without a teacher? Use this authoritative explainer:
CDC Infection ControlOptional extra credit (async)
You've passed Unit 2, so the optional extra-credit track is open. Complete reserved-unit work from home (virtual labs included) for extra credit, all submitted on Schoology.
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.
- SubmittedTurned in the right way (Schoology for routine work) and confirmed.
Drop your Thu, Nov 12, 2026 · Infection-control CER here. Use a clear file name (your initials + project). Routine work still goes to Schoology (via the CMSD portal).
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