Wed, May 12, 2027Spring (Semester 2) · Week 17Day 74 of 7580-min blockTight fit

Vaccine data CER analysis

Essential question: What counts as proof that a actually gave you lasting protection?Enduring understanding: A rising and then higher, faster curve is the visible evidence of invisible memory cells at work, and reading that graph honestly means naming both what it proves (durable memory) and what it cannot show (how long protection lasts, or how one person will differ).
Where you are · this course
Unit 3.2 Body Guards: Skin/accessory organs, lymphatic and immune systems, pathogens, immune cells, antigen response. Vaccine data CER analysis ▸ Day 4
Day 74 of 75 this semester1 left before WebXam
🧬 Where you are · PLTW
Human Body SystemsUnit 3: Adventure Awaits ▸ Lesson 3.2 Body Guards"Activity 3.2.3 Going Un-Viral (plaque assay)"
Activity names confirmed from PLTW's published HBS career-connections and Mr. Mendoza's licensed updated-HBS materials. Mr. Mendoza will confirm the exact numbering in myPLTW once the course shell opens.
Today's driving question

Two peaks on a graph: a small first bump after the shot, then a taller, sharper spike after the booster. What is that second, bigger peak proving about your immune memory?

Today you'll be able to

Students will analyze and data and write a CER about immunity.

You've got it when
  • CER includes claim, evidence, and reasoning.
  • Reasoning correctly explains immune memory.
Due today · CER RequiredWritten CER analyzing a graph: claim about how vaccines build immunity, two specific data-point evidence entries, reasoning connecting memory B cells to protection, and one limitation.
Do-Now · start these with your notes closed
  1. If a graph shows levels jumping higher and faster the second time, what does that tell you the body remembered?
  2. Name one reason a blood level might not tell the whole story about whether someone is still protected.
Do this · step by step
numbered so we can always find our place
  1. 1Examine a graph of levels after vaccination.
  2. 2Make a claim about how vaccines build immunity.
  3. 3Cite two data points as evidence.
  4. 4Add reasoning connecting memory cells to protection.
  5. 5Note one limitation of the data.
Interrupted or lost? Picking up again? The CER has five steps: examine the graph, write a claim about how vaccines build immunity, cite two data points as evidence, add reasoning linking memory cells to protection, and note one limitation. Continue at the first part your CER is missing.
Optional project open: Power & Balance - solo or group, about 3 to 4 hours total. Due by Fri, May 28, 2027. Great WebXam prep.

🛠 Get unstuck · pick your level

Need a running start
Before writing, just describe the graph in plain words: where is it low, where does it peak the first time, where does it peak higher the second time? Naming those three points is the evidence you will cite.
On track
Write the full CER. The reasoning is where most points live: do not just say the second peak is higher, explain that memory B cells cause the faster, bigger response. Then name one honest limitation of antibody data.
Stuck? Get unstuck
Absent? Async version: claim = vaccines build immune memory. Evidence = the second antibody peak is higher and faster than the first. Reasoning = memory B cells recognize the antigen instantly. Write those three sentences and add one limitation.
Push me further
Some vaccines need boosters and some do not. Using the idea of waning antibodies versus persistent memory cells, propose why a disease like tetanus needs a booster every 10 years while others give lifelong protection from one series.

🔑 Today's words · 5

skinlymphantibodyantigenpathogen
+3 more in the word bank

Tap a word in the lesson for a plain meaning and one example. Recycled into next week's Do-Now.

Today's study notebook
How the immune system defends the body and how vaccines build protection.
Open the notebook
Audio overviewVideo overviewMind mapStudy guideFlashcardsQuizData table
Where this fits
Tested on (Ohio WebXam)
Human Anatomy and Physiology · 072040 (likely, pending confirmation)
PLTW lesson
HBS · Lesson 3.2 Body Guards
WebXam domain
Human Body Form, Function, and Pathophysiology
Evidence to produce
CER
Lab / skill
MedlinePlus: Immune System and Disorders
Do the work · 80-minute blockfirst 5 min = hook

💡 Big idea: The taller, faster second peak appears because memory B cells recognize the instantly, so the graph is quantitative proof that vaccines build durable memory even as circulating antibodies wane.

  1. 0-10Distribute and orient the graph; label key features (peaks, doses, time axis)
  2. 10-25Guided annotation: mark primary response, secondary response, memory cell involvement
  3. 25-45Draft CER: claim about immunity, two data-point evidence entries, reasoning naming memory cells
  4. 45-58Add limitations section: at least one real limitation explained briefly
  5. 58-70: check that reasoning explicitly names memory cells and a mechanism
  6. 70-80Revise and submit CER
Mr. Mendoza's 5-minute intro
  • A trial produces exactly this kind of graph: levels over time after one or two doses.
  • Today you will read that graph as a scientist and translate it into a CER.
  • Connecting the peak level to memory-cell generation is the mechanistic reasoning that earns full marks.
  • You will also note a real limitation so your argument is scientifically honest.
Know by the end
  • A post-vaccination graph typically shows a primary peak followed by a higher, faster secondary peak after a booster or re-exposure.
  • Memory B cells are the cellular basis of long-term protection.
  • Limitations of data include waning immunity over time and individual variation in response.
Open this PLTW section today

Unit 3.2 Body Guards: Skin/accessory organs, lymphatic and immune systems, pathogens, immune cells, antigen response. · data CER analysis

Day 4 of this lesson. Open this exact section in myPLTW (find it in Clever, Microsoft sign-in), then do the work below.

Do this: Complete the or data-analysis prompt in Lesson 3.2 Body Guards on myPLTW; finish it before of your immunity CER.

Complete

Mark the analysis task complete in myPLTW after submitting your -data CER.

How far to get

Modeling task is done; today the analysis task should show complete and your CER should be submitted.

Upload as evidence

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 · fill in and submit

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 3.2 Body Guards: Skin/accessory organs, lymphatic and immune systems, pathogens, immune cells, antigen response.Day 4 of this projectSee the full week plan
Today's PLTW target

Unit 3.2 Body Guards: Skin/accessory organs, lymphatic and immune systems, pathogens, immune cells, antigen response. · Vaccine data CER analysis

Complete the or data-analysis prompt in Lesson 3.2 Body Guards on myPLTW; finish it before of your immunity CER.

Modeling 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.

1 · What you do today

🎯 Students will analyze and data and write a CER about immunity.

  • Examine a graph of levels after vaccination.
  • Make a claim about how vaccines build immunity.
  • Cite two data points as evidence.
  • Add reasoning connecting memory cells to protection.
  • Note one limitation of the data.
2 · What you turn in

CER: Written CER analyzing a graph: claim about how vaccines build immunity, two specific data-point evidence entries, reasoning connecting memory B cells to protection, and one limitation.

Turn it in on Schoology using the checklist just below. Upload by 11:29 PM for full credit.

3 · Who's doing what (team)
TaskWho
Examine a graph of levels after vaccination._______
Make a claim about how vaccines build immunity._______
Cite two data points as evidence._______
Add reasoning connecting memory cells to protection._______
Note one limitation of the data._______

Working solo? Put your own name in "Who" for every row.

4 · Words I can use correctly
5 · I'm successful today when I can…
  • CER includes claim, evidence, and reasoning.
  • Reasoning correctly explains immune memory.
6 · Reflection & next steps
Where are you today?0/7 checked
Pick your period and code first.
Your 4 steps today
  1. 1
    Do this
    Students will analyze vaccine and antibody data and write a CER about immunity.
  2. 2
  3. 3
    Submit this
    CER: Written CER analyzing a vaccine antibody graph: claim about how vaccines build immunity, two specific data-point evidence entries, reasoning connecting memory B cells to protection, and one limitation.
  4. 4
    Submit it here
    1. 1Open Clever.
    2. 2Microsoft (district) sign-in.
    3. 3Schoology and myPLTW are both in Clever.
    Look for this assignment in Schoology: Human Anatomy & Physiology (Human Body Systems) › Unit 3.2 Body Guards: Skin/accessory organs, lymphatic and immune systems, pathogens, immune cells, antigen response. › CER
    Open Schoology
Were you absent? Jump to the make-up plan
Learn it · deck, reading, and vocabulary
Three-tier teaching slide deck

Tier 1 is the time-boxed teacher set for the block; Tier 2 adds scaffolded vocabulary, examples, and a reading routine; Tier 3 extends into careers and current biomedical applications.

Generated from this lesson's canonical data with a red-team citation check.

Watch the trap

Students often think Students often think a high level right after vaccination means you are protected for life.. The trap: That is the trap: levels wane over time, and the level varies from person to person. The durable protection comes from memory B cells, which can rebuild antibodies fast even after blood levels drop. Reading only the peak, and ignoring the waning and the individual variation, overstates what the data proves.

Worked example · a parallel case (guides, does not reveal)
Worked CER on a parallel case (TB skin-test reading)
Completes: Models the immunity-analysis CER format on a different data set: a claim, two quantitative data points read from a table, cell-mediated memory reasoning, and one limitation of the data. Use it as a format-and-depth guide, then build your own CER from today's antibody graph.

Parallel scenario (NOT today's prompt): A person once exposed to tuberculosis bacteria gets a Mantoux skin test. A tiny amount of TB protein is injected just under the skin, and 48 hours later a nurse measures the induration, the firm raised bump, in millimeters. A second person who has never been exposed to TB gets the same test. The results table shows: exposed person, 15 mm of induration; never-exposed person, 0 mm. Read the data and write a CER about immune memory.\n\nClaim: The skin-test data show that the previously exposed person carries lasting immune memory for the TB bacteria, while the never-exposed person does not.\n\nEvidence: At the same 48-hour reading, the exposed person developed 15 mm of induration at the injection site. The never-exposed person developed 0 mm of induration under identical test conditions.\n\nReasoning: The first exposure to TB caused the immune system to make memory T cells specific to that bacterium. When the test reintroduced the TB protein, those memory T cells recognized it and triggered a fast, localized response that pulled immune cells and fluid into the area, producing the firm 15 mm bump. The never-exposed person had no matching memory T cells, so nothing recognized the protein and no reaction formed, which is why the induration measured 0 mm. The difference in millimeters is the visible signature of cell-mediated immune memory: a measurable reaction means the body has met this antigen before.\n\nLimitation: A single induration measurement shows that memory exists, but it does not reveal how strong the protection is or how long it will last, and it cannot by itself distinguish past infection from a prior TB vaccine. Reactions can also vary from person to person, so one reading is not proof of full immunity.

Antibody graph: a low primary peak around 30 units after the first dose, then a much higher peak around 90 units after the booster.

Also due today: Submit your CER to the Schoology assignment for HBS Immune Day 4.

See the full worked example
Portal terms
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.
This unit's vocabulary
/AN-tih-bod-ee//AN-tih-jen//PATH-uh-jen/

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.

Build your vocabulary · optional, for extra credit

Pick just 2 or 3 words from today and make them yours: write what each one means in your own words, then give one example from what you actually did in Vaccine data CER analysis. 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.

skin
lymph
antibody
antigen
pathogen
vaccine

Saved on this device. Show Mr. Mendoza or add these to your notebook glossary to claim the extra credit.

Unit notebook (fillable)

A fillable, Cornell-style notebook for Unit 3: Adventure Awaits. Type your notes, cues, and summaries right in the PDF, or print it and write by hand. Each lesson page has a cue column, a notes column, and a summary box, plus dated lab-record pages you can turn in.

HBS Unit 3 notebook: Adventure Awaits Fillable PDFCornell notes + lab recordsOpen
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.

Check yourself · commit, then reveal
Quick self-check · commit, then reveal

A graph shows antibody levels six months after vaccination have dropped noticeably. A student concludes the vaccine stopped working. Is that conclusion correct? Explain using memory cells.

How sure are you?

Write an answer and pick a confidence to unlock the key.

Cumulative WebXam review · flash practice

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.

Tap an answer to check it · nothing is recorded or graded
[Review: Challenge Accepted: a model-organism investigation into heavy metals] Identifying the limitations of an experiment is important because it:
[Review: Cardiopulmonary Connection: heart structure and reading an EKG] Blood pressure is typically reported as two numbers representing:
[Review: Gas Exchange: lung volumes, spirometry, and expedition clearance] A pulse oximeter placed on a fingertip measures:
Which statement best describes innate immunity compared with adaptive immunity?
Go further and get help
Where this leads: careers
What to do if you were absent
If YOU are 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 going

How to get there: open Clever and sign in with your Microsoft (district) account. You will find both Schoology and myPLTW right there in Clever. Turn in your work on Schoology; do the online activities in myPLTW.

If MR. MENDOZA is absent

Class still runs. Complete the online activity above (it's self-guided). Need the concept taught without a teacher? Use this authoritative explainer:

MedlinePlus: Immune System and Disorders
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, submitted on Schoology.

Open the extra-credit track
How this is graded
For: CER: Written CER analyzing a vaccine antibody graph: claim about how vaccines build immunity, two specific data-point evidence entries, reasoning connecting memory B cells to protection, and one limitation.
  • Complete
    Every required part of the artifact is present, nothing left blank.
  • Accurate
    The science and the data are correct and match the evidence.
  • Scientific reasoning
    You explain your claim with evidence and reasoning (CER), not just an answer.
  • Professional communication
    Clear, organized, labeled, and written the way a clinician or scientist would.
  • Submitted
    Turned in the right way (Schoology for routine work) and confirmed.