Thu, Feb 25, 2027Spring (Semester 2) · Week 6Day 26 of 6780-min block

Resistance and stewardship

Today's target

Explain how antibiotic resistance evolves and why stewardship slows it down.

Due today · Notebook check Required

Before-and-after resistance diagram, explanation of why completing a course helps, zone-data connection to resistance risk, two stewardship actions with biological rationale, and one connection sentence to Monday's debate.

Your 4 steps today
  1. 1
    Do this
    Explain how antibiotic resistance evolves and why stewardship slows it down.
  2. 2
  3. 3
    Submit this
    Notebook check: Before-and-after resistance diagram, explanation of why completing a course helps, zone-data connection to resistance risk, two stewardship actions with biological rationale, and one connection sentence to Monday's debate.
  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: Genetics of Disease (Medical Interventions) › Bacterial structure, antibiotic mechanisms, MIC, resistance, and stewardship. › Notebook check
    Open Schoology
Were you absent? Jump to the make-up plan
Where this fits
Tested on (Ohio WebXam)
Genetics of Disease · 072130
PLTW lesson
MI · Resistance and stewardship
WebXam domain
Bio-Molecular Technology
Evidence to produce
Notebook check
Lab / skill
CDC Antibiotic Resistance
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: How does antibiotic use create selection pressure that makes resistance inevitable without stewardship?

  1. 0-12 minRead the resistance evolution overview: rare resistant mutant survives, reproduces, population shifts
  2. 12-28 minDraw a before-and-after diagram: sensitive population before treatment, resistant-dominated population after incomplete treatment
  3. 28-42 minExplain in writing why completing the full prescribed course reduces resistance (removes more of the sensitive population that competes with resistant cells)
  4. 42-55 minUse Wednesday's zone data: which antibiotic had the smallest zone? That drug is most at risk of becoming ineffective first under resistance
  5. 55-68 minList two specific stewardship actions; explain the biological mechanism behind each
  6. 68-80 minWrite the connection sentence linking Monday's debate to the biological reality of resistance
Mr. Mendoza's 5-minute intro
  • Resistance is not a mystery; it is exactly what natural selection predicts will happen when you apply a constant lethal pressure to a population.
  • Your Wednesday zone-of-inhibition data tells you which drug is most vulnerable to resistance in your bacterial strain.
  • Understanding the biology today is what makes your Friday stewardship recommendation more than opinion.
  • Exit goal: a before-and-after resistance drawing and a connection sentence linking your lab data to resistance risk.
Do this, step by step
  1. 1Read how a few resistant bacteria survive treatment and then multiply.
  2. 2Draw a before-and-after picture of a population becoming mostly resistant.
  3. 3Explain why finishing a prescribed course can reduce resistance.
  4. 4Connect your zone-of-inhibition data to which drug resistance would make useless first.
  5. 5List two stewardship actions that slow resistance.
  6. 6Write one sentence linking your Monday debate to the biology of resistance.
You'll be able to
  • You will be able to explain how antibiotic resistance evolves.
  • You will be able to connect lab data to resistance risk.
  • You will be able to name stewardship actions that slow resistance.
Know by the end
  • Natural selection acts on bacterial populations: bacteria with random resistance mutations survive antibiotic treatment and reproduce, making resistance more common over time.
  • Stopping antibiotics early leaves a partially treated population of mostly resistant survivors, accelerating resistance emergence.
  • Stewardship actions (prescribing only when necessary, completing full courses, using narrow-spectrum drugs when possible) reduce selection pressure and slow resistance.
📺 Tutor me: CDC: How Antimicrobial Resistance Happens
Do the work

Your PLTW work today

Open this PLTW section today

Bacterial structure, antibiotic mechanisms, MIC, resistance, and stewardship. · Resistance and stewardship

Day 4 of this lesson. Open this exact section in myPLTW (reached through Schoology), then do the work below.

Do this: Open Activity 1.2.4 When Antibiotics Fail in myPLTW and work through the resistance mechanisms game or simulation.

Complete

Complete the resistance mechanisms summary table and one explanation of how misuse accelerates resistance.

How far to get

Antibiotic selection should be done (Wednesday); resistance summary and explanation due today.

Upload as evidence

Resistance mechanisms summary table in notebook.

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.

Bacterial structure, antibiotic mechanisms, MIC, resistance, and stewardship.Day 4 of this projectSee the full week plan
Today's PLTW target

Bacterial structure, antibiotic mechanisms, MIC, resistance, and stewardship. · Resistance and stewardship

Open Activity 1.2.4 When Antibiotics Fail in myPLTW and work through the resistance mechanisms game or simulation.

Antibiotic selection should be done (Wednesday); resistance summary and explanation due today.

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

🎯 Explain how antibiotic resistance evolves and why stewardship slows it down.

  • Read how a few resistant bacteria survive treatment and then multiply.
  • Draw a before-and-after picture of a population becoming mostly resistant.
  • Explain why finishing a prescribed course can reduce resistance.
  • Connect your zone-of-inhibition data to which drug resistance would make useless first.
  • List two stewardship actions that slow resistance.
  • Write one sentence linking your Monday debate to the biology of resistance.
2 · Turn in today

Notebook check: Before-and-after resistance diagram, explanation of why completing a course helps, zone-data connection to resistance risk, two stewardship actions with biological rationale, and one connection sentence to Monday's debate.

Submit on Schoology

Upload by 11:29 PM for full credit.

3 · Who's doing what (team)
TaskWho
Read how a few resistant bacteria survive treatment and then multiply._______
Draw a before-and-after picture of a population becoming mostly resistant._______
Explain why finishing a prescribed course can reduce resistance._______
Connect your zone-of-inhibition data to which drug resistance would make useless first._______
List two stewardship actions that slow resistance._______
Write one sentence linking your Monday debate to the biology of resistance._______

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 will be able to explain how antibiotic resistance evolves.
  • You will be able to connect lab data to resistance risk.
  • You will be able to name stewardship actions that slow resistance.
6 · Reflection & next steps
Where are you today?0/9 checked
Pick your period and code first.
Explore

Teacher-posted resources

Classroom documents for this lesson. Ones marked “Open the file” open right here; the rest are posted in Schoology. Use the label on each card to choose the right move.

Use during lessonFor: Everyone
MI Activity 1.2.1 Antibiotic Therapy
worksheet/handoutOpens here
Open the file

Open this when the class reaches this activity and use it to complete the required lesson artifact.

Placement rationale

Matched Antibiotic treatment, MIC, resistance by path:Medical-Interventions/Unit-1_How-to-Fight-Infection/1.2_Antibiotic-Treatment; keywords:antibiotic, therapy. Score 142. Visibility: student-schoology (student-facing resource; link through Schoology rather than local path).

Use during lessonFor: Everyone
Activity 1.2.4 When Antibiotics Fail Activity Sheet
worksheet/handoutOpens here
Open the file

Open this when the class reaches this activity and use it to complete the required lesson artifact.

Placement rationale

Matched Antibiotic treatment, MIC, resistance by path:Medical-Interventions/Unit-1_How-to-Fight-Infection/1.2_Antibiotic-Treatment; keywords:antibiotic, resistance. Score 142. Visibility: student-schoology (student-facing resource; link through Schoology rather than local path).

Catch-up / reteachFor: Need extra support
MI 1.2 Antibiotic Treatment Key Terms
worksheet/handoutOpens here
Open the file

Use this if you were absent, got stuck, or need another pass before you submit the lesson artifact.

Placement rationale

Matched Antibiotic treatment, MIC, resistance by path:Medical-Interventions/Unit-1_How-to-Fight-Infection/1.2_Antibiotic-Treatment; keywords:antibiotic, resistance. Score 138. Visibility: student-schoology (student-facing resource; link through Schoology rather than local path).

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

Lab day

Lab & supplies

Bring / set up
Pre-poured agar plates (or simulation)Antibiotic disksSterile forcepsRuler or calipers for zone measurementInoculating loopMarker and tape for labeling
CDC Antibiotic Resistance
Words

This unit's vocabulary

antibioticbacteriostaticbactericidalMIC(Minimum Inhibitory Concentration)zone of inhibitionresistanceplasmid/PLAZ-mid/

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
Beta-lactam antibiotics fight bacteria primarily by doing what?
Tetracyclines stop bacterial growth by which mechanism?
Which statement correctly describes how antibiotic resistance arises in a bacterial population?
Which mechanism is the most common way bacteria share plasmids carrying antibiotic-resistance genes?
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: Who is the culprit? Identifying a pathogen with DNA and BLAST] What was the landmark international collaboration that identified the nucleotide base pairs of humans?
[Review: Getting ready to test: serial dilutions and the ELISA setup] A technician makes a serial dilution starting with 100 ng/mL of antigen, transferring equal parts antigen and water at each step. What is the concentration after the first two dilutions?
[Review: Reading the color: running an ELISA and trusting your controls] An ELISA result is read simply as a color change with no number attached. This kind of observed, non-measurable result is called what?
Beta-lactam antibiotics fight bacteria primarily by doing what?
Explore

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.

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 Notebook check.

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:

CDC Antibiotic Resistance
How this is graded
For: Notebook check — Before-and-after resistance diagram, explanation of why completing a course helps, zone-data connection to resistance risk, two stewardship actions with biological rationale, and one connection sentence to Monday's debate.
  • 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 Thu, Feb 25, 2027 · Resistance and stewardship here. Use a clear file name (your initials + project). Routine work still goes to Schoology (via the CMSD portal).

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