Wed, Mar 24, 2027Spring (Semester 2) · Week 10Day 45 of 6780-min block

CER paragraph

Today's target

Write a claim-evidence-reasoning paragraph and distinguish correlation from causation in your data.

Due today · CER Required

CER paragraph with a specific claim supported by cited graph data, reasoning linking evidence to claim, a correlation/causation classification with justification, and one alternative explanation.

Your 4 steps today
  1. 1
    Do this
    Write a claim-evidence-reasoning paragraph and distinguish correlation from causation in your data.
  2. 2
  3. 3
    Submit this
    CER: CER paragraph with a specific claim supported by cited graph data, reasoning linking evidence to claim, a correlation/causation classification with justification, and one alternative explanation.
  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: Biotechnology for Health (Biomedical Innovations) › Data tables, graphical claims, variables, outliers, correlation vs causation. › CER
    Open Schoology
Were you absent? Jump to the make-up plan
Where this fits
Tested on (Ohio WebXam)
Biotechnology for Health and Disease · 072125
PLTW lesson
BI · CER paragraph
WebXam domain
Microbiology Testing and Technology
Evidence to produce
CER
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 CER paragraph turns a graph into a defensible scientific argument.

  1. 0-5 minWarm-up: name one claim your graph clearly supports
  2. 5-20 minDraft your claim sentence; identify specific evidence values from the graph
  3. 20-40 minWrite the reasoning connecting evidence to claim
  4. 40-55 minClassify the relationship as correlation or causation with written justification
  5. 55-70 minAdd one alternative explanation for the observed pattern
  6. 70-80 minPeer review: does the CER hold together without looking at the graph?
Mr. Mendoza's 5-minute intro
  • Your graph is a picture, but a CER paragraph is the argument that makes it mean something.
  • Today we use your graph to write a claim, back it with specific data, and reason through it.
  • Then we'll ask the harder question: does your graph show that one thing caused another, or just that they moved together?
  • One honest alternative explanation makes your argument stronger, not weaker.
Do this, step by step
  1. 1State a claim your graph supports.
  2. 2Cite specific evidence from the data table or graph.
  3. 3Explain the reasoning linking evidence to claim.
  4. 4Decide whether your data shows correlation or causation and justify it.
  5. 5Note one alternative explanation for the pattern.
You'll be able to
  • Your paragraph includes a claim, evidence, and reasoning.
  • You correctly labeled the relationship as correlation or causation.
Know by the end
  • A claim is a specific statement the data supports, not a vague observation.
  • Evidence in a CER must come from actual data values, not general impressions.
  • Correlation and causation are logically distinct; environmental data almost always shows correlation.
📺 Tutor me: Khan Academy: correlation and causality
Do the work

Your PLTW work today

Open this PLTW section today

Data tables, graphical claims, variables, outliers, correlation vs causation. · CER paragraph

Day 2 of this lesson. Open this exact section in myPLTW (reached through Schoology), then do the work below.

Do this: Open Problem 4 in your myPLTW course shell and navigate to the current activity, then write a CER paragraph using your graph data and classify the relationship as correlation or causation.

Complete

Add your CER paragraph to the Problem 4 portfolio alongside your graph.

How far to get

The graph draft is done; CER writing is the analysis milestone, so check your activity guide and submit the paragraph today.

Upload as evidence

Completed CER paragraph submitted as evidence before leaving class.

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.

Data tables, graphical claims, variables, outliers, correlation vs causation.Day 2 of this projectSee the full week plan
Today's PLTW target

Data tables, graphical claims, variables, outliers, correlation vs causation. · CER paragraph

Open Problem 4 in your myPLTW course shell and navigate to the current activity, then write a CER paragraph using your graph data and classify the relationship as correlation or causation.

The graph draft is done; CER writing is the analysis milestone, so check your activity guide and submit the paragraph 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

🎯 Write a claim-evidence-reasoning paragraph and distinguish correlation from causation in your data.

  • State a claim your graph supports.
  • Cite specific evidence from the data table or graph.
  • Explain the reasoning linking evidence to claim.
  • Decide whether your data shows correlation or causation and justify it.
  • Note one alternative explanation for the pattern.
2 · Turn in today

CER: CER paragraph with a specific claim supported by cited graph data, reasoning linking evidence to claim, a correlation/causation classification with justification, and one alternative explanation.

Submit on Schoology

Upload by 11:29 PM for full credit.

3 · Who's doing what (team)
TaskWho
State a claim your graph supports._______
Cite specific evidence from the data table or graph._______
Explain the reasoning linking evidence to claim._______
Decide whether your data shows correlation or causation and justify it._______
Note one alternative explanation for the pattern._______

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…
  • Your paragraph includes a claim, evidence, and reasoning.
  • You correctly labeled the relationship as correlation or causation.
6 · Reflection & next steps
Where are you today?0/7 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
BI Activity 4.1.1 Environmental Exposures
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 Environmental data graphing and analysis by path:Biomedical-Innovations/Problem-4_Environmental-Health/4.1_Environmental-Health; keywords:environmental. Score 134. Visibility: student-schoology (student-facing resource; link through Schoology rather than local path).

Catch-up / reteachFor: Need extra support
BI 4.1.1 Tox Town Concept Map (Williams Family)
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 Environmental data graphing and analysis by path:Biomedical-Innovations/Problem-4_Environmental-Health/4.1_Environmental-Health; keywords:environmental. Score 130. Visibility: student-schoology (student-facing resource; link through Schoology rather than local path).

Catch-up / reteachFor: Need extra support
BI 4.1.2 Water Contamination Activity Overview
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 Environmental data graphing and analysis by path:Biomedical-Innovations/Problem-4_Environmental-Health/4.1_Environmental-Health; keywords:environmental. Score 130. 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.

Words

This unit's vocabulary

graphtrendoutliererrorcorrelationcausation

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 researcher wants to show how an air pollutant's concentration changed over a 30-day period. Which graph type is most appropriate?
On a scatter plot of pollutant data, one point sits far away from the clear trend of all the others. This point is best described as:
Two variables rise together on a graph, but one does not cause the other. This illustrates which key idea in data analysis?
Why should error bars be included on a graph of repeated environmental measurements?
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: Making the call: bias, error, graph choice, and a CER conclusion] An SDS lists a corrosive pictogram and the statement “causes severe skin burns,” but the PPE section says no gloves are required. Why is this incorrect?
[Review: Validating Your Prototype: literature review, decision matrices, and metrics] A team uses a decision matrix to choose among prototype designs. What is the main purpose of this tool?
[Review: Environmental Exposure: pathways, dose, and public-health risk] When assessing the risk of a pollutant to a community, which two factors must be considered together?
A researcher wants to show how an air pollutant's concentration changed over a 30-day period. Which graph type is most appropriate?
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 CER.

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 Statistics
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: CER — CER paragraph with a specific claim supported by cited graph data, reasoning linking evidence to claim, a correlation/causation classification with justification, and one alternative explanation.
  • 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 Wed, Mar 24, 2027 · CER paragraph here. Use a clear file name (your initials + project). Routine work still goes to Schoology (via the CMSD portal).

Upload a project