Mon, Dec 14, 2026Fall (Semester 1) · Week 17Day 73 of 7580-min block

Device and model testing lab

Today's target

Students build and test a device or vessel model, collecting data to evaluate performance.

Due today · Data table Required

Completed data table with at least three trial measurements, labeled independent and dependent variables, an average performance calculation, one measurement error source, and one test-setup limitation.

Your 4 steps today
  1. 1
    Do this
    Students build and test a device or vessel model, collecting data to evaluate performance.
  2. 2
  3. 3
    Submit this
    Data table: Completed data table with at least three trial measurements, labeled independent and dependent variables, an average performance calculation, one measurement error source, and one test-setup limitation.
  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 4.1 Innovation, Inc.: Engineering design, device/vessel model, CAD concept, prototype testing, disease prevention. › Data table
    Open Schoology
Were you absent? Jump to the make-up plan
Where this fits
Tested on (Ohio WebXam)
Principles and Practice of Biomedical Technology · 072110
PLTW lesson
PBS · Device and model testing lab
WebXam domain
Biotechnology Research and Experiments
Evidence to produce
Data table
Lab / skill
PhET: simulations for engineering and physical testing
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: Performance data only means something if you controlled the variables and ran enough trials: one trial is a measurement, three trials are evidence.

  1. 0-8 minRecord the assembly and testing SOP; verify all materials are present at your station.
  2. 8-15 minIdentify and record independent, dependent, and controlled variables.
  3. 15-40 minAssemble the device or vessel model to specification following the SOP.
  4. 40-62 minRun at least three repeated trials; record performance data in a labeled data table after each trial.
  5. 62-72 minCalculate the average performance across trials; note one measurement error source.
  6. 72-80 minState one test-setup limitation; begin organizing data for Thursday CER.
Mr. Mendoza's 5-minute intro
  • Today you are the test engineer: your job is to produce clean, repeatable data from a physical model.
  • Read the SOP before you touch any material: the SOP order exists for accuracy and safety reasons.
  • WebXam 072110 strand 1 (Handling/Preparation/Storage/Disposal) is assessed today: procedure discipline matters.
  • Three trials minimum: if trial 3 is very different from trials 1 and 2, you have a problem worth noting.
Do this, step by step
  1. 1Record the SOP for assembling and testing the model.
  2. 2Identify the independent, dependent, and controlled variables for the test.
  3. 3Build the CAD-based or physical model to specification.
  4. 4Run repeated trials and record performance data in a table.
  5. 5Note measurement error and one limitation of the test setup.
You'll be able to
  • Collect repeated-trial performance data following the SOP.
  • Identify all variables and state one procedural limitation.
Know by the end
  • The independent variable is what you deliberately change; the dependent variable is what you measure as a result.
  • Controlled variables are held constant across all trials so that only the independent variable causes outcome differences.
  • Measurement error can come from tool precision, assembler technique, or environmental variability: name the source, not just the effect.
📺 Tutor me: PhET: Simulations by Subject
Do the work

Your PLTW work today

Open this PLTW section today

Unit 4.1 Innovation, Inc.: Engineering design, device/vessel model, CAD concept, prototype testing, disease prevention. · Device and model testing lab

Day 3 of this lesson. Open this exact section in myPLTW (reached through Schoology), then do the work below.

Do this: Open myPLTW and locate the Lesson 4.1 Designing the Future device testing lab activity. Use the platform rubric or data-table template to structure your results.

Complete

Submit test-result responses or the data table in myPLTW before leaving.

How far to get

Platform data submission completed by end of the lab period.

Upload as evidence

Handwritten data table with three-trial data plus platform submission.

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 4.1 Innovation, Inc.: Engineering design, device/vessel model, CAD concept, prototype testing, disease prevention.Day 3 of this projectSee the full week plan
Today's PLTW target

Unit 4.1 Innovation, Inc.: Engineering design, device/vessel model, CAD concept, prototype testing, disease prevention. · Device and model testing lab

Open myPLTW and locate the Lesson 4.1 Designing the Future device testing lab activity. Use the platform rubric or data-table template to structure your results.

Platform data submission completed by end of the lab period.

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

🎯 Students build and test a device or vessel model, collecting data to evaluate performance.

  • Record the SOP for assembling and testing the model.
  • Identify the independent, dependent, and controlled variables for the test.
  • Build the CAD-based or physical model to specification.
  • Run repeated trials and record performance data in a table.
  • Note measurement error and one limitation of the test setup.
2 · Turn in today

Data table: Completed data table with at least three trial measurements, labeled independent and dependent variables, an average performance calculation, one measurement error source, and one test-setup limitation.

Submit on Schoology

Upload by 11:29 PM for full credit.

3 · Who's doing what (team)
TaskWho
Record the SOP for assembling and testing the model._______
Identify the independent, dependent, and controlled variables for the test._______
Build the CAD-based or physical model to specification._______
Run repeated trials and record performance data in a table._______
Note measurement error and one limitation of the test setup._______

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…
  • Collect repeated-trial performance data following the SOP.
  • Identify all variables and state one procedural limitation.
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
Device or vessel model kit materials (as specified in the PLTW unit materials list)Ruler or measuring tapeScale or balance (if mass is a measured variable)Scissors and tape or adhesivePencil and data table templateTimer or stopwatch (if time is a measured variable)
Safety / SOP
  • Handle scissors and any cutting tools with blade pointed away from the body.
  • Do not modify model materials beyond the SOP: unauthorized changes invalidate the trial data.
  • Keep adhesives and solvents (if any) capped when not in use; avoid skin contact.
  • Clean up all loose model scraps and dispose in the designated waste bin before leaving the station.
  • Wash hands after handling any lab materials.
PhET: simulations for engineering and physical testing
Words

This unit's vocabulary

prototypeconstraintcriterionCAD(Computer-Aided Design)iterationstentpreventiontest plan

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
A study tests if different wavelengths of light affect the rate of photosynthesis. What is the independent variable?
A researcher tests a new vitamin on plant height; one group gets the vitamin and the other plain water. What is the plain-water group?
You test the effect of varying chemical concentrations on plant growth. What is the dependent variable?
When testing a prototype device, why should you change only one design variable at a time between trials?
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: Outbreak Evidence: line lists, epidemic curves, and identifying the agent] To confirm the causative agent of a foodborne outbreak, what evidence is most definitive?
[Review: Emergency Response: assessment, triage, and stabilization] A solution at pH 2 must be made safe for disposal. What target pH should you aim for?
[Review: Medical Surge: mobile care and a public-health communication app] Why must surveillance data shared across a hospital protect patient privacy?
A study tests if different wavelengths of light affect the rate of photosynthesis. What is the independent variable?
Explore

Where this leads — careers

Safety net

What to do if you were absent

Today was a lab — do this instead

Hands-on testing lab: assemble the device or vessel model, run repeated trials against the SOP, and record performance data with controlled variables.

PhET: Interactive Simulations

Then submit your Data table on Schoology.

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:

PhET: simulations for engineering and physical testing
Explore

Optional 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
How this is graded
For: Data table — Completed data table with at least three trial measurements, labeled independent and dependent variables, an average performance calculation, one measurement error source, and one test-setup limitation.
  • 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, Dec 14, 2026 · Device and model testing lab here. Use a clear file name (your initials + project). Routine work still goes to Schoology (via the CMSD portal).

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