Biopsy and staging
Open your materials, follow the steps, then turn in your work.
Explain how a biopsy and staging move a suspicious finding toward a treatment decision.
1. Open your materials
Use the materials named in the first step below. Open lesson resources.
2. Start the work
Open the diagnostic-workflow notes in the PLTW course shell and define biopsy and staging in your own words.
Show all 5 required steps
- Open the diagnostic-workflow notes in the PLTW course shell and define biopsy and staging in your own words.
- Read the sample pathology report and underline the tumor size and whether spread was found.
- Use the provided stage table to assign a stage to two example cases.
- Write one sentence on why a higher stage usually changes the treatment plan.
- Submit a diagnostic-workflow ticket listing the steps from biopsy to assigned stage.
Lost your place? Reopen today's Biopsy and staging 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 describe what a biopsy reveals and how staging is decided.
- You'll be able to connect stage to a change in treatment approach.
3. Turn in your work
DueCheck Schoology- Hand in
- Diagnostic-workflow ticket: ordered steps from biopsy through assigned stage, plus your stage-to-treatment sentence.
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.
Find this lesson's Schoology assignments
These are existing assignments for your section. Follow the directions in the assignment you are working on; this list does not add new work. Check Schoology for each deadline.
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How this lesson connects
Keep using what you learned last class: 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. Today: Cancer diagnosis and treatment planning integrate tissue or molecular findings, stage, tumor features, overall health, benefits, and harms; no single classroom image or marker determines the complete decision.
Optional: listen or watch a unit review▸
Need help? Warm-up, timing, and directions▸
💡 Big idea: diagnosis and treatment planning integrate or molecular findings, stage, features, overall health, benefits, and harms; no single classroom image or marker determines the complete decision.
- 0-10Read diagnostic- notes; define and staging in own words
- 10-25Read sample pathology report; underline size and spread data
- 25-45Stage two example cases using the stage table; compare with a partner
- 45-60Write the stage-to-treatment connection sentence
- 60-72Build diagnostic- ticket (ordered steps list)
- 72-80Submit ticket; preview Wednesday chemo/radiation comparison
- • A doctor suspects , but suspicion is not diagnosis.
- • The -to-staging pipeline turns a suspicious image into a treatment roadmap.
- • Today you will read a real-style pathology report and assign stages yourself.
- • This mirrors the Molecular and Genetic Technology content weighted heavily on the 072130 WebXam.
- • A removes so pathologists can confirm malignancy and type.
- • Staging uses size, -node involvement, and to set a Roman-numeral stage.
- • Higher stage generally requires more aggressive or systemic treatment.
PLTW connection and today's work
Open Activity 3.1.2 Diagnostic Imaging in myPLTW for Lesson 3.1 Detecting Cancer and work through biopsy and staging for the case patient.
Today's stopping point: Monday debate should be complete; biopsy and staging workflow ticket due 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.
Course connection
- Activity 3.1.2 Diagnostic Imaging
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.
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.
diagnosis and treatment planning integrate or molecular findings, stage, features, overall health, benefits, and harms; no single classroom image or marker determines the complete decision.
A smoke alarm detects signs of fire but can also react to burnt toast.
- What does the alarm detect?
- What creates a false alarm?
- What evidence is needed before declaring a fire?
A screening signal changes what to investigate next; it does not automatically prove the cause.
Biomedical tests have measured performance and biological sampling limits that a household alarm does not capture.
- • Alarm signal maps to a test result.
- • Burnt toast maps to a .
- • Inspection maps to confirmation or the next test.
Driving question: Two patients each have a breast . One is 1 cm with clean nodes; the other is 4 cm and found in three nodes. Why does the same disease send them down very different treatment paths?
What you already know: 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.
New idea: diagnosis and treatment planning integrate or molecular findings, stage, features, overall health, benefits, and harms; no single classroom image or marker determines the complete decision.
Visual or model: F1. F1. A lesson illustration or teaching diagram for Biopsy and staging. 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 today's lesson.
- Organize the observation with a stable evidence ID.
- Apply this rule: A screening signal changes what to investigate next; it does not automatically prove the cause.
- Choose the option the evidence supports and state the limit of the conclusion.
Real biomedical example: Today the medical interventions team uses and staging to make a bounded evidence decision. The composite classroom case cannot support a real diagnosis, stage, prognosis, or treatment recommendation.
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 medical procedure that removes a small sample of from the body so it can be examined under a microscope for disease such as .
- • staging: Classifying how far a has grown and spread, which guides treatment choices and predicts likely outcomes.
- • : Treatment that uses powerful drugs to kill rapidly dividing cells throughout the body, though it can also harm some fast-growing healthy cells.
- • radiation: Energy that travels as waves or particles; in medicine it can image inside the body or destroy harmful cells like .
- • : A treatment that attacks specific molecules cancer cells rely on, harming those cells while sparing more healthy cells than older .
- • : Programmed, controlled cell death that the body uses on purpose, including to clear the seam between two tissues during .
- • : An unintended effect of a medicine or treatment that happens in addition to its intended benefit, ranging from mild to serious.
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.
National Institute is the source this lesson's claim is checked against: How Cancer Is Diagnosed
Limit: The composite classroom case cannot support a real diagnosis, stage, prognosis, or treatment recommendation.
A screening signal changes what to investigate next; it does not automatically prove the cause.
Limit: Biomedical tests have measured performance and biological sampling limits that a household alarm does not capture.
You can describe what a reveals and how staging is decided.
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-2026-11-18 · Simulated classroom evidence scenario
Your role: medical interventions team member
Decision: Your team must decide what the evidence from today's lesson supports before submitting the exit response named on today's page.
- • Choose either treatment and expect few side effects, because both are aimed at the cells themselves.
- • Wait on the choice until you know the patient's overall health, since it decides which method's side effects they could handle.
- • Pick radiation for the confined to the neck, since its beam damages dividing cells only along that path.
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 today's lesson. 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 today's lesson supports before submitting the exit response named on today's page.
Context: Today the medical interventions team uses and staging to make a bounded evidence decision. The composite classroom case cannot support a real diagnosis, stage, prognosis, or treatment recommendation.
- • T1: Open the diagnostic- notes in the PLTW course shell and define and staging in your own words.
- • T2: Read the sample pathology report and underline the size and whether spread was found.
- • T3: Use the provided stage table to assign a stage to two example cases.
- • T4: Write one sentence on why a higher stage usually changes the .
- • T5: Submit a diagnostic- ticket listing the steps from to assigned stage.
- • E1: National Institute is the source this lesson's claim is checked against: How Cancer Is Diagnosed
- • E2: A screening signal changes what to investigate next; it does not automatically prove the cause.
- • E3: You can describe what a reveals and how staging is decided.
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 and staging. 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.
Students often think A polished answer about and staging is trustworthy even when its evidence source, comparison, or limitation is missing.. The trap: Presentation quality cannot raise the evidence level. The composite classroom case cannot support a real diagnosis, stage, prognosis, or treatment recommendation.
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: ____
| Case | Tumor size | Spread found | Assigned stage |
|---|---|---|---|
| Case 1 | Small, under 2 cm | No nodes, no metastasis | Stage I |
| Case 2 | Larger, with nearby lymph nodes | Nodes positive, no distant spread | Stage III |
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: Submit your diagnostic-workflow ticket to Schoology before the end of block.
- 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 Biopsy and staging. 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.
Open this when the class reaches this activity and use it to complete the required lesson artifact.
Placement rationale
Matched treatment and therapeutic choices by path:Medical-Interventions/Unit-3_How-to-Conquer-Cancer/3.3_Treating-Cancer; keywords:, radiation, cancer. Score 146. Visibility: student-schoology (student-facing resource; link through Schoology rather than local path).
Use this if you were absent, got stuck, or need another pass before you submit the lesson artifact.
Placement rationale
Matched treatment and therapeutic choices by path:Medical-Interventions/Unit-3_How-to-Conquer-Cancer/3.4_Building-a-Better-Cancer-Treatment; keywords:treatment, cancer. Score 142. 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 today's lesson. It cannot prove causation, diagnose a real patient, or justify action outside this room.
A student makes a certain conclusion about Biopsy and staging 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. 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.
Today is individual work you can do from home: complete the same target above, then submit your Exit ticket.
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:
National Cancer Institute: Types of cancer treatmentYou'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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