Mon, Sep 21, 2026Fall (Semester 1) · Week 5Day 20 of 7080-min block

Submit muscle evidence

Today's target

Submit the muscles-and-motion evidence set and update your tracker.

Due today · Tracker entry Required

Complete muscle evidence packet: sarcomere diagram, Maniken build photos, agonist-antagonist analysis, and two-sentence reflection.

Your 4 steps today
  1. 1
    Do this
    Submit the muscles-and-motion evidence set and update your tracker.
  2. 2
  3. 3
    Submit this
    Tracker entry: Complete muscle evidence packet: sarcomere diagram, Maniken build photos, agonist-antagonist analysis, and two-sentence reflection.
  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: Human Anatomy & Physiology (Human Body Systems) › Unit 1.2 Muscles and Motion: Muscle contraction, muscle orientation, Maniken muscle build, movement and biomechanics. › 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)
Human Anatomy and Physiology · 072040
PLTW lesson
HBS · Submit muscle evidence
WebXam domain
Human Body Form, Function, and Pathophysiology
Evidence to produce
Tracker entry
Lab / skill
Khan Academy: Muscular System
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: The muscular system works across scales: sarcomere cross-bridge cycling at the molecular level produces the agonist-antagonist coordination visible at the joint level.

  1. 0-8Intro: rubric review and packet checklist
  2. 8-30Gather and date-check all three artifacts
  3. 30-50Rubric self-check; fill any gaps
  4. 50-65Update weekly tracker
  5. 65-75Write two-sentence reflection: sarcomere to movement
  6. 75-80Submit packet
Mr. Mendoza's 5-minute intro
  • Three artifacts this week: your sarcomere diagram, your Maniken photos, and your muscle-pair analysis.
  • Before you package them, ask yourself: can someone who was absent use my sarcomere diagram and understand the sliding-filament model? Can they use my Maniken photos to identify the muscles?
  • Your reflection should complete the chain: sarcomere shortens, muscle pulls at insertion, joint moves, agonist-antagonist pair controls it.
  • Next week we measure that movement with sensors.
Do this, step by step
  1. 1Gather your sarcomere diagram, Maniken photo, and muscle-pair analysis.
  2. 2Check each against the evidence rubric for labels and accuracy.
  3. 3Update the weekly tracker with completed tasks.
  4. 4Write a two-sentence reflection on how sarcomeres produce movement.
  5. 5Submit the muscle evidence packet for the weekly summative.
You'll be able to
  • You can assemble a complete muscle evidence packet.
  • You can reflect on the link from sarcomere to motion.
Know by the end
  • A complete muscle evidence packet must trace the mechanism from sarcomere to whole-muscle action.
  • Reflection should connect sliding-filament contraction to the agonist role demonstrated in the Maniken build.
  • Muscle physiology vocabulary (sarcomere, actin, myosin, agonist, antagonist) is tested across both the Human Anatomy emphasis and the Evaluate Body Systems emphasis of the WebXam.
Do the work

Your PLTW work today

Open this PLTW section today

Unit 1.2 Muscles and Motion: Muscle contraction, muscle orientation, Maniken muscle build, movement and biomechanics. · Submit muscle evidence

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

Do this: Confirm all Lesson 1.2 Muscles and Motion tasks for this week are marked complete in myPLTW before packaging your muscle evidence.

Complete

All tasks show complete status; screenshot included in your evidence packet.

How far to get

By today every task from Mon to Thu in Lesson 1.2 this week should be checked off.

Upload as evidence

myPLTW completion screenshot inside the submitted packet.

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 Muscles and Motion: Muscle contraction, muscle orientation, Maniken muscle build, movement and biomechanics.Day 5 of this projectSee the full week plan
Today's PLTW target

Unit 1.2 Muscles and Motion: Muscle contraction, muscle orientation, Maniken muscle build, movement and biomechanics. · Submit muscle evidence

Confirm all Lesson 1.2 Muscles and Motion tasks for this week are marked complete in myPLTW before packaging your muscle evidence.

By today every task from Mon to Thu in Lesson 1.2 this week should be checked off.

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 the muscles-and-motion evidence set and update your tracker.

  • Gather your sarcomere diagram, Maniken photo, and muscle-pair analysis.
  • Check each against the evidence rubric for labels and accuracy.
  • Update the weekly tracker with completed tasks.
  • Write a two-sentence reflection on how sarcomeres produce movement.
  • Submit the muscle evidence packet for the weekly summative.
2 · Turn in today

Tracker entry: Complete muscle evidence packet: sarcomere diagram, Maniken build photos, agonist-antagonist analysis, and two-sentence reflection.

Submit on Schoology

Upload by 11:29 PM for full credit.

3 · Who's doing what (team)
TaskWho
Gather your sarcomere diagram, Maniken photo, and muscle-pair analysis._______
Check each against the evidence rubric for labels and accuracy._______
Update the weekly tracker with completed tasks._______
Write a two-sentence reflection on how sarcomeres produce movement._______
Submit the muscle evidence packet for the weekly summative._______

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…
  • You can assemble a complete muscle evidence packet.
  • You can reflect on the link from sarcomere to motion.
6 · Reflection & next steps
Where are you today?0/7 checked
Pick your period and code first.
Explore

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 day

Lab & supplies

Bring / set up
Maniken modelClay or modeling material for muscle buildMuscle reference diagramsSculpting toolsLab notebookCamera or tablet to document the build
Khan Academy: Muscular System
Words

This unit's vocabulary

sarcomereactinmyosincontractiontendonorigininsertionlever

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
The basic contractile unit of a skeletal muscle fiber is the:
According to the sliding-filament theory, muscle shortening occurs when:
The relatively immovable attachment point of a muscle is called its:
A tendon functions to:
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: PLTW access, the lab notebook, and the language of anatomy] Homeostasis is best defined as:
[Review: Beginning with Bones: regional terms, body planes, cavities, and tissues] A transverse (horizontal) plane divides the body into which two parts?
[Review: Bones: structure, fractures, and how the skeleton repairs itself] Which connective tissue structure attaches one bone to another bone at a joint?
The basic contractile unit of a skeletal muscle fiber is the:
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: Muscular System
How this is graded
For: Tracker entry — Complete muscle evidence packet: sarcomere diagram, Maniken build photos, agonist-antagonist analysis, and two-sentence reflection.
  • 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 muscle evidence here. Use a clear file name (your initials + project). Routine work still goes to Schoology (via the CMSD portal).

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