Chemo and radiation
Do now
Compare how chemotherapy and radiation kill cancer cells and why each causes side effects.
- Hand in
- CER paragraph arguing which treatment (chemo or radiation) is more appropriate for a localized tumor, with apoptosis and side-effect evidence.
- Where
- Turn this in at the drop folder with your district Microsoft sign-in, or hand it to Mr. Mendoza in class. Both count as submitted. Doing the activity in myPLTW does not.
You get two school days for every day you were absent, so this deadline moves with you.
A patient with a single confined to one spot in the neck is offered either or radiation. Which one fits a localized tumor better, and why does the choice change which side effects they get?
Compare how and radiation kill cells and why each causes side effects.
- • You'll be able to contrast the mechanisms of and radiation.
- • You'll be able to explain side effects using and healthy-cell damage.
- Define in your own words: what happens to the cell?
- travels through the whole body; radiation hits one spot. Which one would you pick for a stuck in a single location?
- 1Read the treatment-mechanism notes in the PLTW course shell and define .
- 2Diagram how targets fast-dividing cells throughout the body.
- 3Diagram how radiation damages cell DNA in a targeted area.
- 4List two common side effects for each and tie them to healthy fast-dividing .
- 5Write a CER paragraph claiming which treatment fits a localized and why.
What did this day actually feel like?
Chemo and radiation
LAB Chemotherapy travels everywhere and leans on cancer cells dividing more often than most normal cells, which is why its side effects land on the other fast-dividing tissues: gut lining, marrow, hair. Radiation also damages DNA in dividing cells, but most of its selectivity is that you aim the beam. That is why chemo side effects are body- wide and radiation side effects are wherever the beam went.
It is a blunt instrument used carefully, not a precise one.
Turned in: CER → Claim Evidence Reasoning folder
Fiction. There is no such student. The lessons, labs and dates are the real planned course; the student, the classmates and the conversations are invented.
The same day, drawn.
Chemotherapy travels everywhere and leans on cancer cells dividing more often than most normal cells, which is why its side effects land on the other fast-dividing tissues: gut lining, marrow, hair.
Fiction. There is no such student. The lessons, labs and dates are the real planned course; the student, the classmates and the conversations are invented.
🛠 Get unstuck · pick your level
🔑 Today's words · 5
Tap a word in the lesson for a plain meaning and one example. Recycled into next week's Do-Now.
Do the work · 80-minute blockfirst 5 min = hook▸
💡 Big idea: Both and radiation work by disrupting cell division, so they inevitably damage healthy fast-dividing tissues too, which is why side effects track the treatment method rather than the itself.
- 0-8Read treatment notes; define in margin
- 8-25Draw mechanism diagram (systemic, fast-dividers)
- 25-40Draw radiation mechanism diagram (targeted, DNA damage)
- 40-55List two side effects each; link to healthy type
- 55-72Write CER paragraph: chemo vs. radiation for a localized
- 72-80 CER structure; submit
- • Both and radiation kill , but they do it differently and hurt different bystanders.
- • Today you will diagram each mechanism and then argue which one fits a specific case.
- • The CER format you practice today is one of the highest-frequency skills on the WebXam.
- • By the end you will be able to explain to a patient why their hair may fall out.
- • circulates systemically and targets any rapidly dividing cell.
- • Radiation delivers focused ionizing energy to damage DNA in a defined volume.
- • Side effects correlate directly to which fast-dividing healthy tissues are caught in the treatment field.
Biopsy, imaging, staging, chemo, radiation, targeted therapy, response, side effects. · Chemo and radiation
Day 3 of this lesson. Open this exact section in myPLTW (find it in Clever, Microsoft sign-in), then do the work below.
Do this: Open Activity 3.3.1 Diary of a Patient in myPLTW for Lesson 3.3 Treating Cancer and use the treatment-mechanism notes to diagram and radiation.
Mark the chemo-and-radiation entry complete and attach your CER paragraph.
and staging should be done (Tuesday); chemo/radiation diagrams and CER due today.
Both mechanism diagrams and CER paragraph submitted on the class site.
The official PLTW activity stays inside myPLTW. If myPLTW will not open, use F1 and E1-E3 on this page to complete today's local evidence decision, then make up the official activity when access returns. Turn this in at the drop folder with your district Microsoft sign-in, or hand it to Mr. Mendoza in class. Both count as submitted. Doing the activity in myPLTW does not.
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 through the submission route shown below.
Use the code Mr. Mendoza gave you, not your name. Saved on this device.
Biopsy, imaging, staging, chemo, radiation, targeted therapy, response, side effects. · Chemo and radiation
Open Activity 3.3.1 Diary of a Patient in myPLTW for Lesson 3.3 Treating Cancer and use the treatment-mechanism notes to diagram and radiation.
and staging should be done (Tuesday); chemo/radiation diagrams and CER due today.
This is how Mr. Mendoza sees the class keeping pace with PLTW. Be honest, it only helps if it is accurate.
🎯 Compare how and radiation kill cells and why each causes side effects.
- Read the treatment-mechanism notes in the PLTW course shell and define .
- Diagram how targets fast-dividing cells throughout the body.
- Diagram how radiation damages cell DNA in a targeted area.
- List two common side effects for each and tie them to healthy fast-dividing .
- Write a CER paragraph claiming which treatment fits a localized and why.
CER: CER paragraph arguing which treatment (chemo or radiation) is more appropriate for a localized , with and side-effect evidence.
Turn this in at the drop folder with your district Microsoft sign-in, or hand it to Mr. Mendoza in class. Both count as submitted. Doing the activity in myPLTW does not. Use the checklist just below and upload by 11:29 PM for full credit. Absent with an excused absence? You get two school days for every day you were absent, so this deadline moves with you.
| Task | Who |
|---|---|
| Read the treatment-mechanism notes in the PLTW course shell and define . | _______ |
| Diagram how targets fast-dividing cells throughout the body. | _______ |
| Diagram how radiation damages cell DNA in a targeted area. | _______ |
| List two common side effects for each and tie them to healthy fast-dividing . | _______ |
| Write a CER paragraph claiming which treatment fits a localized and why. | _______ |
Working solo? Put your own name in "Who" for every row.
- You'll be able to contrast the mechanisms of and radiation.
- You'll be able to explain side effects using and healthy-cell damage.
- 1Do thisCompare how chemotherapy and radiation kill cancer cells and why each causes side effects.
- 2Use this resource
- 3Submit thisCER: CER paragraph arguing which treatment (chemo or radiation) is more appropriate for a localized tumor, with apoptosis and side-effect evidence.
- 4Submit it here
- 1Open the drop folder.
- 2Sign in with your district Microsoft account, not a personal one.
- 3Upload the file, named Lastname_Firstname__Assignment Title.
- 4Your own upload panel says Uploaded with a green check: that is your receipt.
Turn this in at the drop folder with your district Microsoft sign-in, or hand it to Mr. Mendoza in class. Both count as submitted. Doing the activity in myPLTW does not. Genetics of Disease (Medical Interventions) › Biopsy, imaging, staging, chemo, radiation, targeted therapy, response, side effects. › CEROpen the drop folder
Learn it · deck, reading, 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.
Staging combines size, -node involvement, and into one number, so that doctors can match how far the has spread to how aggressive the treatment must be.
Both and radiation work by disrupting cell division, so they inevitably damage healthy fast-dividing tissues too, which is why side effects track the treatment method rather than the itself.
An airport checkpoint uses several imperfect checks before deciding what action to take.
- What can each check detect?
- What might create a false alarm?
- Why is one result not always enough?
A decision is stronger when the test fits the question and its limits are known.
Medical decisions also depend on biology, patient context, ethics, and professional judgment.
- • Checkpoint evidence maps to E1-E3.
- • False alarms map to test limitations.
- • The response maps to the justified next intervention or test.
Driving question: A patient with a single confined to one spot in the neck is offered either or radiation. Which one fits a localized tumor better, and why does the choice change which side effects they get?
What you already know: Staging combines size, -node involvement, and into one number, so that doctors can match how far the has spread to how aggressive the treatment must be.
New idea: Both and radiation work by disrupting cell division, so they inevitably damage healthy fast-dividing tissues too, which is why side effects track the treatment method rather than the itself.
Visual or model: F1. F1. A lesson illustration or teaching diagram for Chemo and radiation. 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 Chemo and radiation.
- Organize the observation with a stable evidence ID.
- Apply this rule: A decision is stronger when the test fits the question and its limits are known.
- Choose the option the evidence supports and state the limit of the conclusion.
Real biomedical example: A patient with a single confined to one spot in the neck is offered either or radiation. Which one fits a localized tumor better, and why does the choice change which side effects they get?
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.
circulates systemically and targets any rapidly dividing cell.
Limit: E1 supplies context or an observation; it does not by itself establish the explanation.
Both and radiation work by disrupting cell division, so they inevitably damage healthy fast-dividing tissues too, which is why side effects track the treatment method rather than the itself.
Limit: E2 is a teaching statement or comparison and must be checked against the task evidence.
You'll be able to contrast the mechanisms of and radiation.
Limit: E3 supports only the result or product criterion named here; it cannot justify a broader clinical or causal claim.
PLTW-GEND-2026-11-13 · Simulated classroom evidence scenario
Your role: medical interventions team member
Decision: Your team must decide what the evidence from Chemo and radiation supports before submitting the claim-evidence-reasoning response named on the lesson page.
- • Select the option best supported by E1-E3.
- • Select a reasonable alternative and name the evidence it would require.
- • Delay the claim because the evidence does not distinguish the options.
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: The supplied lesson evidence can support an observation, pattern, classroom mechanism, or next-step decision about Chemo and radiation. It cannot by itself prove causation, establish a real clinical diagnosis, or justify action outside this classroom task.
Reason for review: Your team must decide what the evidence from Chemo and radiation supports before submitting the claim-evidence-reasoning response named on the lesson page.
Context: treatments attack cells that divide fast, so they cannot help hitting the healthy fast-dividing tissues too, and that overlap is the reason side effects exist.
- • T1: Read the treatment-mechanism notes in the PLTW course shell and define .
- • T2: Diagram how targets fast-dividing cells throughout the body.
- • T3: Diagram how radiation damages cell DNA in a targeted area.
- • T4: List two common side effects for each and tie them to healthy fast-dividing .
- • T5: Write a CER paragraph claiming which treatment fits a localized and why.
- • E1: circulates systemically and targets any rapidly dividing cell.
- • E2: Both and radiation work by disrupting cell division, so they inevitably damage healthy fast-dividing tissues too, which is why side effects track the treatment method rather than the itself.
- • E3: You'll be able to contrast the mechanisms of and radiation.
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 Chemo and radiation. 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.
Mean = sum of values / number of values. Median = middle ordered value. Range = maximum - minimum.
For 2, 4, 4, and 10: mean = 20 / 4 = 5, median = 4, and range = 10 - 2 = 8.
Mean, median, and range keep the measurement unit. Order the values before finding the median.
Calculate the requested summary for today's supplied values, then write what it reveals and what it hides.
Students often think Students believe and radiation are smart weapons that seek out and hit only cells.. The trap: Neither one targets specifically. They target the act of dividing. Chemo poisons any rapidly dividing cell anywhere in the body, and radiation damages the DNA of every cell in its beam path, so healthy fast-dividing tissues (hair, gut lining, blood-forming marrow) take collateral damage, which is exactly where the side effects come from.
Claim: For a leukemia that has already spread throughout the bloodstream, a targeted therapy that flags one specific molecule on the cancer cells is usually a better fit than broad chemotherapy.\nEvidence 1: A targeted therapy is built to recognize a protein that appears mainly on the cancer cells, so it binds those cells and triggers apoptosis (programmed cell death) while mostly leaving normal cells alone, which concentrates the killing on the diseased cells even though they are scattered everywhere.\nEvidence 2: Broad chemotherapy travels through the whole body and kills any fast-dividing cell, so it does reach cancer cells no matter where they are, but it also damages healthy fast-dividing tissue and causes side effects like hair loss, mouth sores, nausea, and low blood counts, because hair follicles, the gut lining, and bone marrow all divide quickly.\nReasoning: When the cancer is spread out in the blood, the treatment has to reach the whole body, so a local option would miss most of the disease. Both a targeted therapy and broad chemotherapy can reach cells everywhere, but the targeted drug aims at a marker that is far more common on the cancer cells, so it spares more healthy tissue and tends to cause milder side effects than chemotherapy, which hits every fast-dividing cell it passes. Because the reach of each treatment has to match how spread out the disease is, and because that reach is what decides which healthy tissues get harmed, the targeted therapy fits this widespread situation better.
| Feature | Chemotherapy | Radiation |
|---|---|---|
| Reach | Systemic, whole body | Targeted area |
| How it kills | Hits any fast-dividing cell | Damages DNA in target volume |
| Common side effects | Hair loss, low blood counts | Skin irritation, local fatigue |
| Why side effects happen | Healthy fast-dividing tissue hit | Healthy cells in the beam path |
This model shows the level of evidence and organization needed to complete: Models the CER format for a treatment-mechanism argument on a parallel scenario: whether a targeted therapy or broad chemotherapy better fits a cancer that has spread throughout the bloodstream, using cell-killing mechanism and side-effect evidence. It does not argue the localized-tumor chemo-versus-radiation prompt students must complete.
- 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: Submit your CER paragraph to the class site by 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 Chemo and radiation. 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).
How to get there: open Clever and sign in with your Microsoft (district) account. Both myPLTW and Schoology are in Clever. Do the activity in myPLTW. Turn the work in on this site or hand it to Mr. Mendoza, because that is the step that counts as submitted. Schoology only shows your report-card grade later.
Check yourself · commit, then reveal▸
Claim ceiling for this check: The supplied lesson evidence can support an observation, pattern, classroom mechanism, or next-step decision about Chemo and radiation. It cannot by itself prove causation, establish a real clinical diagnosis, or justify action outside this classroom task.
A patient has one small tumor confined to a single lymph node in the neck. Would radiation or chemotherapy be the better first choice, and why does that choice reduce side effects?
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.
Go further and get help▸
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.
Open the drop folderTurn this in at the drop folder with your district Microsoft sign-in, or hand it to Mr. Mendoza in class. Both count as submitted. Doing the activity in myPLTW does not.
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.
- SubmittedTurned in the right way, on the class site or handed to Mr. Mendoza in class, and confirmed. Not in Schoology: that is where the report-card grade appears later.