Hypothesis and protocol
Students will write a hypothesis and protocol for a C. elegans heavy-metal investigation using teacher notes and the PLTW online task.
Written if-then hypothesis, complete materials list, step-by-step procedure, and at least one safety consideration with rationale for the C. elegans heavy-metal investigation.
- 1Do thisStudents will write a hypothesis and protocol for a C. elegans heavy-metal investigation using teacher notes and the PLTW online task.
- 2Use this resource
- 3Submit thisPre-lab: Written if-then hypothesis, complete materials list, step-by-step procedure, and at least one safety consideration with rationale for the C. elegans heavy-metal investigation.
- 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 2.3 Challenge Accepted: Open-ended C. elegans/heavy metal investigation or validated simulation; data and conclusions. › Pre-labOpen 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: A hypothesis is a specific, testable prediction that drives the design of every step in an experiment.
- 0-10Notes: if-then hypothesis structure and common mistakes
- 10-25Write your if-then hypothesis for the heavy-metal C. elegans investigation
- 25-42PLTW online protocol-planning activity
- 42-58Draft complete materials list and step-by-step procedure
- 58-70Add one safety consideration with a rationale for each precaution
- 70-80Partner review of hypothesis and protocol; submit pre-lab
- • Tomorrow you run your C. elegans heavy-metal investigation, so today is about being ready.
- • A hypothesis written now will focus your data collection and analysis.
- • Your protocol is your recipe: if it is vague, your results will be uninterpretable.
- • You will also note the safety steps you must follow when working with heavy-metal solutions.
- 1Take notes on hypothesis structure and prediction.
- 2Write an if-then hypothesis for your investigation.
- 3Complete the PLTW online protocol-planning activity.
- 4List the materials and steps for your procedure.
- 5Note one safety consideration for heavy-metal handling.
- • Hypothesis is testable and written in if-then form.
- • PLTW online task is submitted with a complete protocol.
- • An if-then hypothesis names the independent variable, predicts the direction of change, and identifies the dependent variable.
- • A protocol lists materials, step-by-step procedure, and safety precautions in enough detail to be replicated.
- • Heavy-metal exposures require careful handling protocols to protect the experimenter and prevent contamination.
Your PLTW work today
Unit 2.3 Challenge Accepted: Open-ended C. elegans/heavy metal investigation or validated simulation; data and conclusions. · Hypothesis and protocol
Day 2 of this lesson. Open this exact section in myPLTW (reached through Schoology), then do the work below.
Do this: Complete the protocol-planning online activity in Lesson 2.3 Challenge Accepted on myPLTW; finish all hypothesis and procedure screens during the 25-42 minute window.
Mark the protocol activity complete in myPLTW after submitting your pre-lab document.
Monday's task is done; today the protocol task should show complete in your progress bar.
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 2.3 Challenge Accepted: Open-ended C. elegans/heavy metal investigation or validated simulation; data and conclusions. · Hypothesis and protocol
Complete the protocol-planning online activity in Lesson 2.3 Challenge Accepted on myPLTW; finish all hypothesis and procedure screens during the 25-42 minute window.
Monday's task is done; today the protocol task should show complete in your progress bar.
This is how Mr. Mendoza sees the class keeping pace with PLTW. Be honest, it only helps if it is accurate.
🎯 Students will write a hypothesis and protocol for a C. elegans heavy-metal investigation using teacher notes and the PLTW online task.
- Take notes on hypothesis structure and prediction.
- Write an if-then hypothesis for your investigation.
- Complete the PLTW online protocol-planning activity.
- List the materials and steps for your procedure.
- Note one safety consideration for heavy-metal handling.
Pre-lab: Written if-then hypothesis, complete materials list, step-by-step procedure, and at least one safety consideration with rationale for the C. elegans heavy-metal investigation.
Submit on SchoologyUpload by 11:29 PM for full credit.
| Task | Who |
|---|---|
| Take notes on hypothesis structure and prediction. | _______ |
| Write an if-then hypothesis for your investigation. | _______ |
| Complete the PLTW online protocol-planning activity. | _______ |
| List the materials and steps for your procedure. | _______ |
| Note one safety consideration for heavy-metal handling. | _______ |
Working solo? Put your own name in "Who" for every row.
- Hypothesis is testable and written in if-then form.
- PLTW online task is submitted with a complete protocol.
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 Pre-lab.
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:
CDC: Lead poisoning preventionOptional 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 Mon, Apr 12, 2027 · Hypothesis and protocol here. Use a clear file name (your initials + project). Routine work still goes to Schoology (via the CMSD portal).
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