Cardiac data CER analysis
Students will analyze EKG and blood-pressure data and write a CER about cardiovascular health.
Written CER comparing EKG and blood-pressure data to normal reference ranges: specific claim, two measurement evidence entries, mechanism-based reasoning, and one factor that could alter readings.
- 1Do thisStudents will analyze EKG and blood-pressure data and write a CER about cardiovascular health.
- 2Use this resource
- 3Submit thisCER: Written CER comparing EKG and blood-pressure data to normal reference ranges: specific claim, two measurement evidence entries, mechanism-based reasoning, and one factor that could alter readings.
- 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: Human Anatomy & Physiology (Human Body Systems) › Unit 3.1 Cardiopulmonary Connection: Cardiovascular and respiratory systems, blood vessels, heart structure, EKG interpretation. › CEROpen Schoology
- 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: Clinical interpretation compares measured values to reference ranges; deviation signals potential pathology.
- 0-10Review normal EKG and blood-pressure reference ranges (projected)
- 10-25Compare your measurements to normal ranges; annotate differences
- 25-45Draft CER: claim about cardiovascular function, two evidence measurements, reasoning linking structure to function
- 45-58Add one factor that could change the readings (e.g., exercise, stress, caffeine)
- 58-70Peer review: check that evidence includes specific values and reasoning names a mechanism
- 70-80Revise and submit CER
- • You collected EKG and blood-pressure data yesterday; today you become the analyst.
- • Clinicians compare measurements to reference ranges to decide whether a patient is healthy or needs intervention.
- • Your CER will demonstrate that skill: compare your data, make a specific claim, explain the mechanism.
- • A strong reasoning section is what separates a scientific argument from a list of numbers.
- 1Compare your EKG and pulse data to normal ranges.
- 2Make a claim about cardiovascular function from the data.
- 3Cite two measurements as evidence.
- 4Add reasoning connecting structure to function.
- 5Note one factor that could change the readings.
- • CER includes claim, evidence, and reasoning.
- • Data is compared to normal reference ranges.
- • Normal resting heart rate is 60-100 bpm; normal blood pressure is approximately 120/80 mmHg.
- • An EKG deviation (e.g., prolonged QRS, irregular intervals) can indicate arrhythmia or conduction disorder.
- • Reasoning in a CER must explain the mechanism, not just restate the data.
Your PLTW work today
Unit 3.1 Cardiopulmonary Connection: Cardiovascular and respiratory systems, blood vessels, heart structure, EKG interpretation. · Cardiac data CER analysis
Day 4 of this lesson. Open this exact section in myPLTW (reached through Schoology), then do the work below.
Do this: Complete the cardiac data-analysis or CER reflection prompt in Lesson 3.1 Cardiopulmonary Connection on myPLTW; finish it before peer review of your CER.
Mark the data-analysis task complete in myPLTW after submitting your cardiac CER.
Lab task is done; today the analysis task should show complete and your CER should be submitted.
Screenshot or note of completion status for your tracker.
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 Cardiopulmonary Connection: Cardiovascular and respiratory systems, blood vessels, heart structure, EKG interpretation. · Cardiac data CER analysis
Complete the cardiac data-analysis or CER reflection prompt in Lesson 3.1 Cardiopulmonary Connection on myPLTW; finish it before peer review of your CER.
Lab task is done; today the analysis task should show complete and your CER should be submitted.
This is how Mr. Mendoza sees the class keeping pace with PLTW. Be honest, it only helps if it is accurate.
🎯 Students will analyze EKG and blood-pressure data and write a CER about cardiovascular health.
- Compare your EKG and pulse data to normal ranges.
- Make a claim about cardiovascular function from the data.
- Cite two measurements as evidence.
- Add reasoning connecting structure to function.
- Note one factor that could change the readings.
CER: Written CER comparing EKG and blood-pressure data to normal reference ranges: specific claim, two measurement evidence entries, mechanism-based reasoning, and one factor that could alter readings.
Submit on SchoologyUpload by 11:29 PM for full credit.
| Task | Who |
|---|---|
| Compare your EKG and pulse data to normal ranges. | _______ |
| Make a claim about cardiovascular function from the data. | _______ |
| Cite two measurements as evidence. | _______ |
| Add reasoning connecting structure to function. | _______ |
| Note one factor that could change the readings. | _______ |
Working solo? Put your own name in "Who" for every row.
- CER includes claim, evidence, and reasoning.
- Data is compared to normal reference ranges.
Resources & readings
Vetted readings and references for this unit. Use them to prepare, to catch up if you were absent, or to go deeper on today's target.
Lab & supplies
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:
MedlinePlus: Electrocardiogram (EKG/ECG)Optional 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 19, 2026 · Cardiac data CER analysis here. Use a clear file name (your initials + project). Routine work still goes to Schoology (via the CMSD portal).
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