Mon, Sep 21, 2026Fall (Semester 1) · Week 5Day 20 of 7580-min block

Submit morgue evidence

Today's target

Submit your tissue sketches, heart labels, and histology analysis to the unit tracker.

Due today · Tracker entry Required

Complete morgue packet: four labeled histology sketches (magnification noted), heart anatomy diagram (four chambers, two-plus valves, major vessels), Thursday CER with reference comparison, and self-assessment form.

Your 4 steps today
  1. 1
    Do this
    Submit your tissue sketches, heart labels, and histology analysis to the unit tracker.
  2. 2
  3. 3
    Submit this
    Tracker entry: Complete morgue packet: four labeled histology sketches (magnification noted), heart anatomy diagram (four chambers, two-plus valves, major vessels), Thursday CER with reference comparison, and self-assessment form.
  4. 4
    Submit it here
    1. 1CMSD website. Go to clevelandmetroschools.org and click the Clever button.
    2. 2Clever. Clever opens. Sign in if it asks.
    3. 3Microsoft (district) login. Use your district Microsoft account (the one for school).
    4. 4Schoology. Open Schoology, then your class, then Assignments, and find the file named below.
    The file to submit is named: Principles of Biomedical Technology (Principles of Biomedical Science) › Unit 1.2 Master the Morgue: Body systems, toxicology evidence, tissue microscopy, gross anatomy, preserved-heart/autopsy alternative. › Tracker entry
    Open Schoology
Were you absent? Jump to the make-up plan
CER · ArgumentThinking like a scientist · Part 4 of 4

Argument: disagreeing well, and when opinion becomes fact

How do we argue productively when we disagree, and when does a claim become accepted as fact?

An argument is not a fight. It is two or more people testing claims against evidence to get closer to the truth. The best disagreements aim at the strongest version of the other side (steelman it), refute the actual reasoning, and stay about the idea, not the person.

A sound argument and a clash of opinions are different things. Opinions can simply differ and both stand. A scientific argument is settled by evidence: the side with stronger, more reliable evidence and better reasoning should win, and everyone should be willing to update.

So when does an opinion become a fact? In science, a claim becomes accepted not because enough people like it, but when independent evidence keeps supporting it and repeated attempts to disprove it fail. That is consensus, and it is provisional: it holds until better evidence changes it. Truth is not a vote, but agreement among many careful, independent investigations is the best signal we have.

A good argument
  • Steelmans: it takes on the strongest version of the other side.
  • Targets reasoning and evidence, never the person.
  • Is settled by evidence, not by who is louder or more popular.
  • Stays open: the participants will change their minds if the evidence does.
Opinion vs. established fact
  • A claim earns the label “fact” through repeated, independent evidence, not a popularity vote.
  • Even strong consensus stays open to revision if better evidence appears.
Do this today

Take a claim from this course that people might dispute. Write the strongest argument for it and the strongest against it, then say which the evidence supports and what would change your mind.

Where this fits
Tested on (Ohio WebXam)
Principles and Practice of Biomedical Technology · 072110
PLTW lesson
PBS · Submit morgue evidence
WebXam domain
Biotechnology Research and Experiments
Evidence to produce
Tracker entry
Lab / skill
Khan Academy: human body systems (Health and medicine)
Quick glossary
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.
Learn first

Minute-by-minute · 80-minute block

💡 Big idea: A complete morgue evidence packet connects microscopic tissue evidence to macroscopic anatomy and synthesizes both into a forensic argument.

  1. 0:00Project the tracker checklist; walk through each required item with the class
  2. 0:10Work time: upload four histology sketches; verify magnification is labeled on each
  3. 0:25Work time: upload heart diagram; verify all four chambers, at least two valves, and major vessels are labeled
  4. 0:40Work time: upload Thursday CER and annotated comparison notes
  5. 0:58Confirm observation variables and limitations are in the notebook and tracker
  6. 1:08Self-assessment form; one-sentence share: what did the histology comparison tell you that your naked-eye observation missed?
Mr. Mendoza's 5-minute intro
  • We are closing the morgue case file today. Everything from this unit, the tissue sketches, the heart diagram, the histology analysis, the CER, gets submitted as one coherent packet.
  • Check your sketches: is the magnification labeled on every one? If not, fix it now. A sketch without magnification is like a map without a scale.
  • Check your heart diagram: are all four chambers labeled? At least two valves? The major vessels entering and leaving? If anything is missing, your notebook is still here.
  • Your self-assessment is the last item. Be specific about what you are confident in and what you would do differently if you ran this lab again.
Do this, step by step
  1. 1Review the tracker checklist for morgue-unit deliverables.
  2. 2Upload your labeled tissue sketches with magnification.
  3. 3Attach your heart-structure diagram and CER analysis.
  4. 4Confirm observation variables and limitations are documented.
  5. 5Self-assess against success criteria and flag gaps.
You'll be able to
  • I can submit a complete anatomy and analysis packet.
  • I can verify my work against a checklist.
Know by the end
  • A submitted histology sketch without magnification labeled is incomplete and cannot be interpreted by anyone else.
  • A heart-anatomy diagram must label at minimum all four chambers and at least two valves to be scientifically useful.
  • Documenting limitations is part of the professional standard; a forensic report that claims certainty without acknowledging limits is less credible, not more.
Do the work

Your PLTW work today

Open this PLTW section today

Unit 1.2 Master the Morgue: Body systems, toxicology evidence, tissue microscopy, gross anatomy, preserved-heart/autopsy alternative. · Submit morgue evidence

Day 5 of this lesson. Open this exact section in myPLTW (reached through Schoology), then do the work below.

Do this: Open myPLTW and confirm all Lesson 1.2 Master the Morgue tasks are marked complete.

Complete

All Lesson 1.2 tasks should show as complete in your myPLTW progress view.

How far to get

Every item from Monday through Thursday should be submitted today before you leave.

Upload as evidence

Completed myPLTW Lesson 1.2 unit with all tasks marked, plus tracker submission including four histology sketches, labeled heart diagram, Thursday CER, and self-assessment.

All PLTW activities are completed inside the PLTW course environment — this page only gives direction. Submit producibles on Schoology.

The plan

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 1.2 Master the Morgue: Body systems, toxicology evidence, tissue microscopy, gross anatomy, preserved-heart/autopsy alternative.Day 5 of this projectSee the full week plan
Today's PLTW target

Unit 1.2 Master the Morgue: Body systems, toxicology evidence, tissue microscopy, gross anatomy, preserved-heart/autopsy alternative. · Submit morgue evidence

Open myPLTW and confirm all Lesson 1.2 Master the Morgue tasks are marked complete.

Every item from Monday through Thursday should be submitted today before you leave.

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

🎯 Submit your tissue sketches, heart labels, and histology analysis to the unit tracker.

  • Review the tracker checklist for morgue-unit deliverables.
  • Upload your labeled tissue sketches with magnification.
  • Attach your heart-structure diagram and CER analysis.
  • Confirm observation variables and limitations are documented.
  • Self-assess against success criteria and flag gaps.
2 · Turn in today

Tracker entry: Complete morgue packet: four labeled histology sketches (magnification noted), heart anatomy diagram (four chambers, two-plus valves, major vessels), Thursday CER with reference comparison, and self-assessment form.

Submit on Schoology

Upload by 11:29 PM for full credit.

3 · Who's doing what (team)
TaskWho
Review the tracker checklist for morgue-unit deliverables._______
Upload your labeled tissue sketches with magnification._______
Attach your heart-structure diagram and CER analysis._______
Confirm observation variables and limitations are documented._______
Self-assess against success criteria and flag gaps._______

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…
  • I can submit a complete anatomy and analysis packet.
  • I can verify my work against a checklist.
6 · Reflection & next steps
Where are you today?0/7 checked
Pick your period and code first.
Explore

Resources & readings

Hand-picked materials for this lesson. Class file items open the document directly; the rest are vetted readings and interactives from other biomedical programs.

Lab day

Lab & supplies

Bring / set up
Compound light microscopePrepared tissue slides (muscle, epithelial, nervous)Preserved heart or anatomical heart modelDissection tray and probeNitrile glovesLab notebook for histology sketchesSample toxicology data sheet
Khan Academy: human body systems (Health and medicine)
Words

This unit's vocabulary

homeostasis/hoh-mee-oh-STAY-sis/tissueorgan systemtoxicology/tok-sih-KOL-uh-jee/histology/his-TOL-uh-jee/mechanism of death

Tap the speaker to hear a term. Weekly vocabulary task: add two of these terms to your notebook glossary with a definition and an example in your own words.

Check yourself

WebXam practice

Tap an answer to check it · nothing is recorded or graded
To preserve incubated, refrigerated, and frozen substances, what should you closely monitor?
A glass slide carrying a live bacterial smear breaks. Where should it be disposed of?
You plate E. coli and notice a second species grew after 24 hours. What best explains this?
Before handling a specimen under the microscope, which practice best maintains a contamination-free workspace?
Check yourself

Cumulative WebXam review

A quick mixed-review pulling questions from earlier units plus today, so the WebXam material stays fresh.

Tap an answer to check it · nothing is recorded or graded
[Review: Course Launch: your lab notebook, PPE, and the language of evidence] Your analytical balance performance verification shows the standard's mass reads too low. What is the next step?
[Review: Investigating the Scene: documenting evidence like a forensic scientist] A researcher records a mistake in a notebook. What is the legally and scientifically correct way to handle it?
[Review: From Scene to Lab: designing evidence tests and meeting biomolecules] A researcher measures the zone of inhibition created by different mouthwashes. What is the dependent variable?
To preserve incubated, refrigerated, and frozen substances, what should you closely monitor?
Explore

Where this leads — careers

Safety net

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 Tracker entry.

Open Schoology (CMSD) and keep going

How to get there: open the CMSD website, click Clever, sign in with your Microsoft (district) account, then open Schoology from Clever.

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:

Khan Academy: human body systems (Health and medicine)
How this is graded
For: Tracker entry — Complete morgue packet: four labeled histology sketches (magnification noted), heart anatomy diagram (four chambers, two-plus valves, major vessels), Thursday CER with reference comparison, and self-assessment form.
  • 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.
Submission Zone

Drop your Mon, Sep 21, 2026 · Submit morgue evidence here. Use a clear file name (your initials + project). Routine work still goes to Schoology (via the CMSD portal).

Upload a project