Graphing and statistics
Build a graph from collected data and compute descriptive statistics to summarize a sample.
Data table with three trials and units, calculations of mean/median/range/SD, a correctly labeled graph, and a 3-sentence CER explaining what the standard deviation reveals about precision.
- 1Do thisBuild a graph from collected data and compute descriptive statistics to summarize a sample.
- 2Use this resource
- 3Submit thisData table: Data table with three trials and units, calculations of mean/median/range/SD, a correctly labeled graph, and a 3-sentence CER explaining what the standard deviation reveals about precision.
- 4Submit it here
- 1CMSD website. Go to clevelandmetroschools.org and click the Clever button.
- 2Clever. Clever opens. Sign in if it asks.
- 3Microsoft (district) login. Use your district Microsoft account (the one for school).
- 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 Course Launch: PLTW access, lab notebook, PPE/SDS, evidence handling, variables, controls, graphing, descriptive statistics. › Data tableOpen Schoology
Read to prepare for today
Vetted sources picked for today's question. Skim these before you take a position or start the work, so your argument and evidence are grounded.
- 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.
Minute-by-minute · 80-minute block
💡 Big idea: Descriptive statistics and a well-labeled graph turn raw measurements into evidence a scientist can defend.
- 0:00Quick-write: what is the difference between accuracy and precision? Share out
- 0:10Direct instruction: mean, median, range, standard deviation, worked example with real numbers
- 0:28Students calculate all four statistics for their Wednesday data; check with a partner
- 0:42Graph construction: choose graph type, set labeled axes with units, plot data points
- 1:00CER writing: what does the spread (SD) say about precision in your measurement?
- 1:10Pair-share CERs; preview Friday submission checklist
- • You collected three measurements Wednesday. Three numbers on a page are not yet evidence. Today we turn those numbers into something a scientist or doctor could actually use.
- • In biomedical science, data without statistics is like a diagnosis without a reason. The standard deviation tells us not just the answer, but how confident we should be in it.
- • We will practice calculating mean, median, range, and standard deviation by hand first so you understand what the math is actually doing, then we will verify with a calculator.
- • Then we build the graph. A graph should tell the story of your data at a glance. We will learn what makes a graph trustworthy vs. misleading.
- 1Enter Wednesday's measurements into a data table with labeled units.
- 2Calculate mean, median, range, and standard deviation for your sample.
- 3Choose an appropriate graph type and plot the data with titled axes.
- 4Write a CER: what does the spread of data tell you about precision?
- 5Identify one limitation that the standard deviation reveals about your method.
- • I can compute mean, range, and standard deviation.
- • I can pick and label a graph that fits my data type.
- • Mean, median, and range summarize a dataset's center and spread.
- • Standard deviation quantifies how much individual measurements scatter around the mean, revealing precision.
- • The choice of graph type (bar, line, scatter) depends on whether the independent variable is categorical or continuous.
Your PLTW work today
Unit Course Launch: PLTW access, lab notebook, PPE/SDS, evidence handling, variables, controls, graphing, descriptive statistics. · Graphing and statistics
Day 4 of this lesson. Open this exact section in myPLTW (reached through Schoology), then do the work below.
Do this: Open the launch unit in myPLTW and locate the data-analysis resource. Review any graphing or statistics guidance provided, then apply it to the data you collected Wednesday.
Mark the data-analysis review task complete in myPLTW.
You collected data Wednesday. By the end of today your data table, descriptive statistics, and labeled graph should all be in your notebook.
Completed notebook page showing the data table, calculated statistics, and a labeled graph.
All PLTW activities are completed inside the PLTW course environment — this page only gives direction. Submit producibles on Schoology.
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 Course Launch: PLTW access, lab notebook, PPE/SDS, evidence handling, variables, controls, graphing, descriptive statistics. · Graphing and statistics
Open the launch unit in myPLTW and locate the data-analysis resource. Review any graphing or statistics guidance provided, then apply it to the data you collected Wednesday.
You collected data Wednesday. By the end of today your data table, descriptive statistics, and labeled graph should all be in your notebook.
This is how Mr. Mendoza sees the class keeping pace with PLTW. Be honest, it only helps if it is accurate.
🎯 Build a graph from collected data and compute descriptive statistics to summarize a sample.
- Enter Wednesday's measurements into a data table with labeled units.
- Calculate mean, median, range, and standard deviation for your sample.
- Choose an appropriate graph type and plot the data with titled axes.
- Write a CER: what does the spread of data tell you about precision?
- Identify one limitation that the standard deviation reveals about your method.
Data table: Data table with three trials and units, calculations of mean/median/range/SD, a correctly labeled graph, and a 3-sentence CER explaining what the standard deviation reveals about precision.
Submit on SchoologyUpload by 11:29 PM for full credit.
| Task | Who |
|---|---|
| Enter Wednesday's measurements into a data table with labeled units. | _______ |
| Calculate mean, median, range, and standard deviation for your sample. | _______ |
| Choose an appropriate graph type and plot the data with titled axes. | _______ |
| Write a CER: what does the spread of data tell you about precision? | _______ |
| Identify one limitation that the standard deviation reveals about your method. | _______ |
Working solo? Put your own name in "Who" for every row.
- I can compute mean, range, and standard deviation.
- I can pick and label a graph that fits my data type.
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 & supplies
This unit's vocabulary
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.
WebXam practice
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.
What to do if you were 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 Data table.
Open Schoology (CMSD) and keep goingHow to get there: open the CMSD website, click Clever, sign in with your Microsoft (district) account, then open Schoology from Clever.
Class still runs. Complete the online activity above (it's self-guided). Need the concept taught without a teacher? Use this authoritative explainer:
OSHA Hazard Communication Standard (SDS format)- CompleteEvery required part of the artifact is present, nothing left blank.
- AccurateThe science and the data are correct and match the evidence.
- Scientific reasoningYou explain your claim with evidence and reasoning (CER), not just an answer.
- Professional communicationClear, organized, labeled, and written the way a clinician or scientist would.
- SubmittedTurned in the right way (Schoology for routine work) and confirmed.
Drop your Thu, Aug 27, 2026 · Graphing and statistics here. Use a clear file name (your initials + project). Routine work still goes to Schoology (via the CMSD portal).
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