Unit 1.2 Muscles and Motion: muscle contraction, the Maniken muscle build, movement and biomechanics, then the wearable-data debate.
Your PLTW coursework: Human Body Systems ▸ Unit 1: Road to Rehabilitation ▸ Lesson 1.2 Muscles and Motion ▸ "Activity 1.2.1 Causes of Contraction", "Activity 1.2.2 Makeup of a Muscle"
What to do if absent- 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.
Model how muscles contract using the sliding of and , build muscles on the Maniken, and explain motion using origin, , and levers.
- 1Review a diagram and label and , then describe what happens when they slide past each other.
- 2Roll and place a muscle on your Maniken, identifying its origin and its as you attach it.
- 3Trace the muscle you built and predict which movement it produces when it contracts.
- 4Label the that connects your muscle to bone and explain its job.
- 5Identify one as a lever and show where the force and the load act.
- 6Write a short caption explaining how your built muscle creates motion from origin to .
- • You will be able to explain muscle using and .
- • You will be able to build a muscle on the Maniken and identify its origin and .
- • You will be able to describe a as a lever that produces movement.
Open any day for its full lesson, the work due that day, and guided notes.
Two labeled photos of your Maniken muscle build ( and views) with each muscle identified and its action stated.
Agonist-antagonist-synergist analysis for one chosen movement, plus a revised Maniken label card showing each muscle's role.
One-paragraph CER taking a position on whether employers should access wearable physiological data from workers.
- Hook: every time you move, billions of tiny filaments are sliding past each other inside your muscles.
- Today's goal: build a muscle with your own hands on the Maniken and explain exactly how it moves bone.
- Monday bioethics tie-in: is it fair for athletes to use legal supplements to build muscle faster than rivals?
- Reminder: your graded muscle model evidence is submitted on the class site.
Do this: Advance the PLTW HBS online benchmark through Unit 1.2 Muscles and Motion.
- • Muscle happens when and filaments slide within the .
- • A muscle attaches at an origin and an and pulls on bone through a .
- • Build a muscle on the Maniken and identify its origin and .
- • Describe how a muscle and act as a lever to create motion.
📋 PLTW evidence due this week: your Maniken muscle build documented with origin, , and the motion it produces.
All PLTW activities are completed inside the PLTW course environment: this page only gives direction.
Use this chart to keep your place. Nothing on it is turned in through the portal.
| Day | Work | Turn in |
|---|---|---|
| Monday · Mon, Feb 22 | Evidence for | |
| Tuesday · Tue, Feb 23 | Maniken muscle build | Two labeled photos of your Maniken muscle build (anterior and posterior views) with each muscle identified and its action stated. |
| Wednesday · Wed, Feb 24 | Muscle action analysis | Agonist-antagonist-synergist analysis for one chosen movement, plus a revised Maniken label card showing each muscle's role. |
| Thursday · Thu, Feb 25 | Bioethics: wearable data privacy | One-paragraph CER taking a position on whether employers should access wearable physiological data from workers. |
| Friday · Fri, Feb 26 | Evidence for |
- T: teacher background notes + PLTW launch task
- W: lab / data or model work
- Th: analysis / CER or design revision
Turn in: Unit 1.2 Muscles and Motion: muscle contraction, the Maniken muscle build, movement and biomechanics, then the wearable-data debate. weekly work due Muscle model evidence.
Go to Schoology to turn this in.
Submit one PDF. Put your first and last name in the document header. Name the file: FirstName LastName - Assignment Title - YYYY-MM-DD.pdf.
Open Schoology PDF upload helpIf you cannot get in, see Mr. Mendoza. Do not skip the work.
3 panels from the illustrated semester.
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.
This explainer accompanies the PLTW lab protocol: watch it before lab.
Most days, this class is your PLTW coursework: and PLTW is online and individual. So being out usually just means doing exactly what we did in class, from home.
Open Clever, then myPLTWSign in to Clever with your district Microsoft account to open Schoology or myPLTW. Follow today's posted steps. If myPLTW will not open, use the posted alternative and tell Mr. Mendoza. Turn in your completed work through the Schoology assignment.
You can't do those from home: do this instead: Teacher-posted data/model packet, same objective. Supplemental: Khan: muscle .
Class still runs. A substitute will post today's plan: complete the online activity above; it's built to be self-guided. Need the concept taught without a teacher? Use this authoritative explainer:
Khan Academy: Muscular System
Hand-picked readings, videos, and interactives for this lesson, all free and from authoritative open organizations (NIH, CDC, OpenStax, Khan Academy, PhET, HHMI, and more).