Research design ticket
Do now
Submit a research design ticket that critiques a study and proposes a sound physiology design.
- Hand in
- Problem 2 research design ticket: study critique identifying variable/control/limitation flaws, plus a proposed sound design with hypothesis, variables, and planned measurements.
- 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.
Given a flawed physiology study summary, can you name exactly what went wrong and turn each flaw into a design rule for your own Problem 2 study?
Submit a research design ticket that critiques a study and proposes a sound physiology design.
- • You can critique a study's design choices.
- • Your proposed design controls variables and is testable.
- Name one thing that could make a heart rate study give a wrong answer even if nobody cheated.
- If two groups in a study were tested at different times of day, why might that ruin the results?
- 1Read a short provided physiology study summary.
- 2Critique its design: variables, controls, and limitations.
- 3Propose how you would design your own study to avoid those flaws.
- 4State your hypothesis, variables, and planned measurements.
- 5Submit the Problem 2 research design ticket.
What did this day actually feel like?
Research design ticket
A testable question with variables defined. Mine was too broad twice before it was answerable.
Turned in: exit ticket → Exit Tickets 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.
A testable question with variables defined. Mine was too broad twice before it was answerable.
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: Critiquing another study's flaws makes your own design safer, because every flaw you catch in their work becomes a requirement in yours, so you avoid their mistakes on paper instead of in your data.
- 0-10Introduce the study-critique framework: variables, controls, , and limitations
- 10-30Read the provided physiology study summary and annotate design choices
- 30-50Critique: identify variable, control, and limitation problems in the study
- 50-65Propose your own study design that avoids those flaws: hypothesis, variables, and planned measurements
- 65-77Submit the Problem 2 research design ticket
- 77-80Exit check: name the most important design improvement your proposed study makes
- • Today you read a short physiology study summary and pull it apart -- not to criticize, but to learn from its design choices.
- • Every flaw you find in someone else's study is a mistake you will not make in your own.
- • Then you will propose a sound design of your own and document it as your Friday summative.
- • Study-design critique is a direct skill for the Molecular and Genetic Technology and Microbiology Testing strands of WebXam 072125.
- • How to evaluate a study's variable identification, controls, and limitations using named criteria.
- • How the flaws in a study become the design requirements for a better one.
- • What a sound physiology study design looks like when variables are controlled and the hypothesis is testable.
Evidence-based revision, Q&A, intro to physiology research design. · Research design ticket
Day 5 of this lesson. Open this exact section in myPLTW (find it in Clever, Microsoft sign-in), then do the work below.
Do this: Open Problem 2 in your myPLTW course shell and locate the research-design or study-critique activity to review the critique format.
Mark the research-design ticket activity complete in your tracker after submitting.
The Problem 2 variable and hypothesis work is done; by end of today the study critique and your proposed physiology design should be submitted as the weekly summative.
Research design ticket with study critique and your proposed design including hypothesis, variables, and planned measurements.
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.
Evidence-based revision, Q&A, intro to physiology research design. · Research design ticket
Open Problem 2 in your myPLTW course shell and locate the research-design or study-critique activity to review the critique format.
The Problem 2 variable and hypothesis work is done; by end of today the study critique and your proposed physiology design should be submitted as the weekly summative.
This is how Mr. Mendoza sees the class keeping pace with PLTW. Be honest, it only helps if it is accurate.
🎯 Submit a research design ticket that critiques a study and proposes a sound physiology design.
- Read a short provided physiology study summary.
- Critique its design: variables, controls, and limitations.
- Propose how you would design your own study to avoid those flaws.
- State your hypothesis, variables, and planned measurements.
- Submit the Problem 2 research design ticket.
Exit ticket: Problem 2 research design ticket: study critique identifying variable/control/limitation flaws, plus a proposed sound design with hypothesis, variables, and planned measurements.
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 a short provided physiology study summary. | _______ |
| Critique its design: variables, controls, and limitations. | _______ |
| Propose how you would design your own study to avoid those flaws. | _______ |
| State your hypothesis, variables, and planned measurements. | _______ |
| Submit the Problem 2 research design ticket. | _______ |
Working solo? Put your own name in "Who" for every row.
- You can critique a study's design choices.
- Your proposed design controls variables and is testable.
- 1Do thisSubmit a research design ticket that critiques a study and proposes a sound physiology design.
- 2Use this resource
- 3Submit thisExit ticket: Problem 2 research design ticket: study critique identifying variable/control/limitation flaws, plus a proposed sound design with hypothesis, variables, and planned measurements.
- 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. Biotechnology for Health (Biomedical Innovations) › Evidence-based revision, Q&A, intro to physiology research design. › Exit ticketOpen 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.
You must define your variables and a testable hypothesis first so that your measurements mean something, because an undefined study cannot tell you what actually caused a change.
Critiquing another study's flaws makes your own design safer, because every flaw you catch in their work becomes a requirement in yours, so you avoid their mistakes on paper instead of in your data.
A bridge prototype is tested against a load limit, cost limit, and user need before revision.
- Which requirement is a criterion?
- Which limit is a constraint?
- What test result should trigger a redesign?
A design improves when evidence is compared with explicit criteria and constraints.
Biomedical designs also require , ethics, and biological validation beyond a physical prototype test.
- • Bridge requirements map to design criteria.
- • Load results map to E1-E3.
- • Revision maps to the next evidence-based iteration.
Driving question: Given a flawed physiology study summary, can you name exactly what went wrong and turn each flaw into a design rule for your own Problem 2 study?
What you already know: You must define your variables and a testable hypothesis first so that your measurements mean something, because an undefined study cannot tell you what actually caused a change.
New idea: Critiquing another study's flaws makes your own design safer, because every flaw you catch in their work becomes a requirement in yours, so you avoid their mistakes on paper instead of in your data.
Visual or model: F1. F1. A lesson illustration or teaching diagram for Research design ticket. Use it with E1-E3; it is a model or context image, not experimental or patient data. What to notice: Trace the labeled system, test, or design relationship and identify which evidence should trigger revision.
- Observe or measure the relevant feature in Research design ticket.
- Organize the observation with a stable evidence ID.
- Apply this rule: A design improves when evidence is compared with explicit criteria and constraints.
- Choose the option the evidence supports and state the limit of the conclusion.
Real biomedical example: Given a flawed physiology study summary, can you name exactly what went wrong and turn each flaw into a design rule for your own Problem 2 study?
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.
- • iteration: One repeated cycle of building, testing, and improving, where each pass refines the design or result based on what the last pass revealed.
- • feedback: A loop in which the output of a process feeds back to adjust the process itself, either damping change (negative) or amplifying it (positive).
- • usability: How easy, efficient, and satisfying a product is for its intended users to learn and use to reach their goals.
- • hypothesis: A testable, falsifiable prediction about how variables relate, written so an experiment can support it or prove it wrong.
- • variable: Any factor in an experiment that can change or be changed, including what you test, what you measure, and what you hold steady.
- • control: The comparison condition that isolates the effect of the variable being tested by keeping everything else the same.
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.
How to evaluate a study's variable identification, controls, and limitations using named criteria.
Limit: E1 supplies context or an observation; it does not by itself establish the explanation.
Critiquing another study's flaws makes your own design safer, because every flaw you catch in their work becomes a requirement in yours, so you avoid their mistakes on paper instead of in your data.
Limit: E2 is a teaching statement or comparison and must be checked against the task evidence.
You can critique a study's design choices.
Limit: E3 supports only the result or product criterion named here; it cannot justify a broader clinical or causal claim.
PLTW-BFH-2027-03-02 · Simulated classroom evidence scenario
Your role: biomedical design team member
Decision: Your team must decide what the evidence from Research design ticket supports before submitting the exit response named on the lesson page.
- • Keep the current design.
- • Revise the feature that misses a criterion.
- • Run one more fair test before choosing.
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: The supplied lesson evidence can support an observation, pattern, classroom mechanism, or next-step decision about Research design ticket. It cannot by itself prove causation, establish a real clinical diagnosis, or justify action outside this classroom task.
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.
- • The solution must address the stated need in Research design ticket.
- • The decision must be supported by E1-E3.
- • The final product must make the success criteria visible.
- • Complete the work inside the 80-minute block.
- • Use only supplied or teacher-approved materials and evidence.
- • Do not trade , accessibility, or privacy for speed.
- • and evidence quality: must pass before scoring other criteria.
- • User need and effectiveness: highest scored criterion.
- • Time, cost, and ease of use: compare only after and effectiveness pass.
Test evidence: For each option, record the E1-E3 result that supports or fails each criterion. Do not assign a score without a named observation.
- Version or option tested
- Criterion met or missed
- Evidence ID and result
- Revision made
- Reason for the revision
- Need and user
- Criteria and constraints
- Chosen option and evidence
- Test result
- Revision and reason
Students often think Students often think a study is trustworthy if the researchers were honest and collected real data, so an honest study must have a valid conclusion.. The trap: That is a trap because honesty does not fix design; an uncontrolled variable can hand you a real, honestly measured number that still answers the wrong question, which is exactly why you critique the design, not the intentions.
Problem 2 research design ticket
Study I critiqued (summary provided in class): a study claimed that drinking coffee raises heart rate, based on measuring 4 people once after coffee, with no resting baseline.
Design flaws:
- No control or baseline: there is no before-coffee reading to compare against.
- Tiny sample: 4 people cannot represent a population reliably.
- Uncontrolled variables: activity and time of day were not held constant.
My improved design:
- Hypothesis: If a person drinks caffeinated coffee, then their heart rate will rise compared to a measured baseline.
- Variables: independent, caffeine versus no caffeine; dependent, heart rate; controlled, same people, same rest, same time of day.
- Planned measurements: resting heart rate, then heart rate 30 minutes after the drink, repeated for each person, with at least 12 participants.
Why this is better: it adds a baseline, controls variables, and uses a larger sample, so the conclusion would actually be interpretable.
This model shows the level of evidence and organization needed to complete: A ticket that critiques a sample physiology study's design and proposes a sound study with a testable hypothesis, controlled variables, and planned measurements.
- 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 the Problem 2 research design ticket on the class site, or hand it to Mr. Mendoza in class.
- 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 Research design ticket. 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.
Use this if you were absent, got stuck, or need another pass before you submit the lesson artifact.
Placement rationale
Matched ER presentation and physiology bridge by path:Biomedical-Innovations/Problem-1_Emergency-Room/1.1_Emergency-Room; keywords:emergency room, clinical. Score 142. Visibility: student-schoology (student-facing resource; link through Schoology rather than local path).
Open this when the class reaches this activity and use it to complete the required lesson artifact.
Placement rationale
Matched ER presentation and physiology bridge by path:Biomedical-Innovations/Problem-2_Human-Physiology/2.1_Human-Physiology; keywords:physiology. Score 134. Visibility: student-schoology (student-facing resource; link through Schoology rather than local path).
Open this when the class reaches this activity and use it to complete the required lesson artifact.
Placement rationale
Matched ER presentation and physiology bridge by path:Biomedical-Innovations/Problem-2_Human-Physiology/2.1_Human-Physiology; keywords:physiology. Score 134. 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 Research design ticket. It cannot by itself prove causation, establish a real clinical diagnosis, or justify action outside this classroom task.
A study finds a supplement 'raised energy,' but everyone took it right after lunch. What is the design flaw, and what does it do to the conclusion?
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 Exit ticket.
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:
Khan Academy Scientific Method- 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.