Exposure pathways, dose-response, pollutants, mitigation and risk.
Your PLTW coursework: Biomedical Innovation ▸ Problem 4: Investigating Environmental Health ▸ "Activity 4.1.1 Environmental Exposures", "Activity 4.1.2 Analysis of Water Contamination"
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.
Trace how a pollutant reaches the human body, connect dose to harm, and use real environmental data to estimate public-health risk.
- 1In your notebook, draw an exposure pathway from a pollutant source to a person, labeling each step (air, water, or food).
- 2Define , dose, and in your own words next to your diagram.
- 3Open an EPA or CDC dataset for a local pollutant and record the highest and lowest values you see.
- 4Write one sentence on how dose changes the level of risk for the people exposed.
- 5Identify one group that faces higher exposure and explain why in a sentence.
- 6List one realistic step that would lower exposure for that community.
- • You will be able to trace an exposure pathway from source to person.
- • You will be able to explain how dose relates to health risk.
- • You will be able to read environmental data to identify higher-risk groups.
Open any day for its full lesson, the work due that day, and guided notes.
Complete environmental exposure map integrating pathway diagram, dose data with threshold comparison, mitigation recommendations, citations, and at-risk population label.
Endpoint table with the claim you predicted, your assigned known concentration, your endpoint well number, the blank result, and the pooled class results; a drafted calibration graph with titled and scaled axes; the coded unknown marked on the line with its estimated concentration; and one sentence stating how wide the estimate is and one named limitation of pooling data across teams that pipetted differently.
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.
Finalized claim graph package: labeled , graph with titled scaled axes, CER paragraph, data-source citations, and outlier notes.
- Hook: the air, water, and food around us carry both nutrients and hazards, and dose decides which one wins.
- Today's goal: connect a real pollutant to a real population using actual data.
- Monday bioethics debate fits here: is it just for some neighborhoods to bear more pollution than others?
- Reminder: your graded exposure analysis is submitted on the class site.
Do this: Advance your PLTW environmental health problem by completing your exposure-pathway analysis and risk write-up in the online course shell.
- • An exposure pathway describes how a pollutant travels from a source to a person.
- • Dose, the amount received, strongly shapes whether a substance causes harm.
- • Trace a pollutant from source to human exposure.
- • Use environmental data to identify higher-risk populations.
📋 PLTW evidence due: an exposure-pathway diagram and a data-based public-health risk analysis in the course shell.
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, Apr 12 | Exposure map submit | Complete environmental exposure map integrating pathway diagram, dose data with threshold comparison, mitigation recommendations, citations, and at-risk population label. |
| Tuesday · Tue, Apr 13 | Graph draft | Endpoint table with the claim you predicted, your assigned known concentration, your endpoint well number, the blank result, and the pooled class results; a drafted calibration graph with titled and scaled axes; the coded unknown marked on the line with its estimated concentration; and one sentence stating how wide the estimate is and one named limitation of pooling data across teams that pipetted differently. |
| Wednesday · Wed, Apr 14 | Evidence for | |
| Thursday · Thu, Apr 15 | CER paragraph | 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. |
| Friday · Fri, Apr 16 | Claim graph submit | Finalized claim graph package: labeled data table, graph with titled scaled axes, CER paragraph, data-source citations, and outlier notes. |
- M: environmental justice debate
- T: exposure map
- Th: mitigation notes
- F: case quiz
Turn in: Exposure pathways, dose-response, pollutants, mitigation and risk. weekly work due Environmental exposure map.
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.
4 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: Public dataset analysis.
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:
EPA: Learn About Environmental Health
Classroom documents for this lesson are posted in Schoology. Open Clever, then Schoology, and find each one by the name shown on its card.
Open this when the class reaches this activity and use it to complete the required lesson artifact.
Placement rationale
Matched Environmental exposure and community health by path:Biomedical-Innovations/Problem-4_Environmental-Health/4.1_Environmental-Health; keywords:environmental, water quality. Score 142. Visibility: student-schoology (student-facing resource; link through Schoology rather than local path).
Use this if you were absent, got stuck, or need another pass before you submit the lesson artifact.
Placement rationale
Matched Environmental exposure and community health by path:Biomedical-Innovations/Problem-4_Environmental-Health/4.1_Environmental-Health; keywords:environmental, exposure. Score 138. Visibility: student-schoology (student-facing resource; link through Schoology rather than local path).
Open this when the class reaches this activity and use it to complete the required lesson artifact.
Placement rationale
Matched Environmental exposure and community health 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).
Sign 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.