Mon, Feb 1, 2027Spring (Semester 2) · Week 3Day 8 of 5780-min blockTight fit

Lab notebook and safety practical

Essential question: What has to be in place before you can safely handle a or a chemical?Enduring understanding: Safe practice begins with reading the SDS and wearing the right PPE, because you protect yourself before you ever pick up a .

Safety gate · before any work

  • Goggles and gloves must be on before handling any specimen or chemical in this class.
  • Know the location of the eyewash station before beginning any lab.
  • Never recap needles or put sharps in the regular trash; use the sharps container.

Do now

Set up a dated HBS lab notebook and pass a PPE and SDS safety practical.

DueTonight, 11:29 PM
Hand in
Completed SDS checklist (Sections 2, 4, 8) plus a photo of your initialized, dated notebook page.
Where
Turn this in at the drop folder with your district Microsoft sign-in, or hand it to Mr. Mendoza in class. Both count as submitted. Doing the activity in myPLTW does not.

You get two school days for every day you were absent, so this deadline moves with you.

Where you are · this course
Course Launch: PLTW access, BioDigital/Maniken routines, lab notebook, PPE/SDS, anatomy language, measurement norms. Lab notebook and safety practical ▸ Day 3
Day 8 of 57 this semester49 left before WebXam
🧬 Where you are · PLTW
Human Body SystemsUnit 1: Road to Rehabilitation ▸ Lesson 1.1 Beginning with Bones"Activity 1.1.1 Meet the Patients", "Activity 1.1.2 Language of Anatomy"
Activity names confirmed from PLTW's published HBS career-connections and Mr. Mendoza's licensed updated-HBS materials. Mr. Mendoza will confirm the exact numbering in myPLTW once the course shell opens.
Today's driving question

You are about to handle a preserved for the first time. What do you check, and what do you put on, before your gloves touch it?

Today you'll be able to

Set up a dated HBS lab notebook and pass a PPE and SDS practical.

You've got it when
  • You can record a dated, labeled lab-notebook entry.
  • You can find hazards, PPE, and first aid on any SDS and gear up correctly.
Due today · Pre-lab RequiredCompleted SDS checklist (Sections 2, 4, 8) plus a photo of your initialized, dated notebook page.
Do-Now · start these with your notes closed
  1. Which SDS section tells you what PPE a chemical needs?
  2. What three things does handling require you to wear?
Do this · step by step
numbered so we can always find our place
  1. 1Create notebook sections for objective, data, analysis, and reflection, then date page one.
  2. 2Locate the eyewash, sharps container, and SDS binder in the lab.
  3. 3Open one SDS and find the hazards (Section 2), PPE (Section 8), and first aid (Section 4).
  4. 4Put on the correct PPE for a mock -handling task and have it checked.
  5. 5Submit your initialized notebook page and completed /SDS checklist.
Interrupted or lost? If you lost your place, check your notebook setup (dated, with objective, data, analysis, reflection) and your SDS card (Sections 2, 8, and 4). Add the missing part.
The story

What did this day actually feel like?

Lab notebook and safety practical

LAB Notebook setup and the safety practical. Sections for objective, data, analysis, reflection, and page one dated.

Then we had to physically locate the eyewash, the sharps container, and the SDS binder, because knowing where they are on a diagram is not the same as knowing where they are when something has gone wrong.

The SDS checklist is sections 2, 4 and 8: hazards, first aid, protection. I had to look up a real chemical and find all three.

Turned in: SDS checklist and notebook photo → recorded in Class Records

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.

The comic

The same day, drawn.

Drawing, panel 8: Lab notebook and safety practical.

Notebook setup and the safety practical. Sections for objective, data, analysis, reflection, and page one dated.

MR. MENDOZA

Knowing where the eyewash is on a diagram is not the same as knowing where it is when something has gone wrong.

Panel 8Lab notebook and safety practical · 2027-02-01
Read week 2, 6 panels

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.

🛠 Get unstuck · pick your level

Run the lab
Set up the dated notebook and pass the PPE and SDS practical.
Absent? Async catch-up
Not sure which PPE? Read Section 8 of the SDS; it lists exactly what to wear.

Lab day: Tier 1 is the whole class at the bench. No extension today.

🔑 Today's words · 5

anatomyphysiologyhomeostasisanteriorposterior
+4 more in the word bank

Tap a word in the lesson for a plain meaning and one example. Recycled into next week's Do-Now.

Today's study notebook
Lab safety, SDS reading, PPE, and keeping a proper science notebook.
Open the notebook
Watch first: today's 1-minute intro
Audio overviewVideo overviewMind mapStudy guideFlashcardsQuizData table
CER · EvidenceThinking like a scientist · Part 2 of 4

What counts as evidence, and where to find it

What makes evidence strong, and where do you find evidence you can trust?

Evidence is the data and observations you use to back up a claim. In science that means measurements, experimental results, images, and records, not “my friend said” or “I saw it once.”

Strong evidence is relevant (it actually bears on the claim), sufficient (there is enough of it), and reliable (it was collected carefully and others could repeat it). One data point is rarely enough; a pattern across many is far stronger.

Where you find it matters. Prefer primary sources and reputable ones: peer-reviewed studies, government and health agencies (CDC, NIH, NHGRI), and your own lab data. When you find a source online, do not trust it on looks. Check who is behind it and what better sources say.

Strong evidence is
  • Relevant: it directly supports (or tests) the claim.
  • Sufficient: there is enough of it, not a single lucky data point.
  • Reliable: collected carefully, and others could reproduce it.
  • Sourced: you can say where it came from and why that source is trustworthy.
Quick source check (SIFT)
  • Stop. Investigate the source: who made this and why?
  • Find better coverage: what do other reputable sources say?
  • Trace claims and quotes back to the original.
Do this today

Find two pieces of evidence for a claim in this unit, one from your lab/class data and one from a reputable source. Note why each source can be trusted.

Where this fits
Tested on (Ohio WebXam)
Human Anatomy and Physiology · 072040 (likely, pending confirmation)
PLTW lesson
HBS · Lesson 1.1 Beginning with Bones
WebXam domain
Human Body Form, Function, and Pathophysiology
Evidence to produce
Pre-lab
Lab / skill
CDC Laboratory Safety
Do the work · 80-minute blockfirst 5 min = hook

💡 Big idea: Safe lab practice begins with reading the SDS and using the correct personal protective equipment before handling any or chemical.

  1. 0-8Intro: why lab matters in a health-science course
  2. 8-20Lab tour: locate eyewash, sharps, fire extinguisher, SDS binder
  3. 20-40SDS deep-dive: open one sheet, complete Sections 2, 4, 8 on checklist
  4. 40-55Notebook setup: date page one, create four sections, write first objective
  5. 55-75PPE practical: don correct gear for mock task, teacher sign-off
  6. 75-80Submit notebook photo and checklist
Mr. Mendoza's 5-minute intro
  • Today we earn the right to use the lab for the rest of the year. No practical, no lab work.
  • We are going to walk through the lab together, find every piece of equipment, and practice reading a real Safety Data Sheet.
  • Your notebook is your scientific record. Everything you do in this course gets recorded there first. Today you set it up correctly.
  • The practical at the end of class is pass/fail. If you need a second attempt you will do it at lunch. No exceptions.
Know by the end
  • A Data Sheet (SDS) has 16 sections; Section 2 lists hazards, Section 8 lists required PPE, Section 4 covers first aid.
  • Standard lab PPE for handling includes gloves, goggles, and a lab coat or apron.
  • Every lab notebook entry must be dated and include objective, data, analysis, and reflection sections.
Open this PLTW section today

Course Launch: PLTW access, BioDigital/Maniken routines, lab notebook, PPE/SDS, anatomy language, measurement norms. · Lab notebook and practical

Day 3 of this lesson. Open this exact section in myPLTW (find it in Clever, Microsoft sign-in), then do the work below.

Do this: Open Lesson 1.1 Beginning with Bones in myPLTW and locate the lab- acknowledgment or introductory safety task; complete it before the PPE practical ends.

Complete

Teacher marks you complete on the checklist; myPLTW safety task also shows complete.

How far to get

You completed Tuesday; today the task should be checked off and your notebook initialized.

Upload as evidence

Teacher signature on your checklist and myPLTW task completion status.

The official PLTW activity stays inside myPLTW. If myPLTW will not open, use F1 and E1-E3 on this page to complete today's local evidence decision, then make up the official activity when access returns. Turn this in at the drop folder with your district Microsoft sign-in, or hand it to Mr. Mendoza in class. Both count as submitted. Doing the activity in myPLTW does not.

Today's PLTW tracker · fill in and submit

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 through the submission route shown below.

Use the code Mr. Mendoza gave you, not your name. Saved on this device.

Course Launch: PLTW access, BioDigital/Maniken routines, lab notebook, PPE/SDS, anatomy language, measurement norms.Day 3 of this projectSee the full week plan
Today's PLTW target

Course Launch: PLTW access, BioDigital/Maniken routines, lab notebook, PPE/SDS, anatomy language, measurement norms. · Lab notebook and safety practical

Open Lesson 1.1 Beginning with Bones in myPLTW and locate the lab- acknowledgment or introductory safety task; complete it before the PPE practical ends.

You completed Tuesday; today the task should be checked off and your notebook initialized.

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

🎯 Set up a dated HBS lab notebook and pass a PPE and SDS practical.

  • Create notebook sections for objective, data, analysis, and reflection, then date page one.
  • Locate the eyewash, sharps container, and SDS binder in the lab.
  • Open one SDS and find the hazards (Section 2), PPE (Section 8), and first aid (Section 4).
  • Put on the correct PPE for a mock -handling task and have it checked.
  • Submit your initialized notebook page and completed /SDS checklist.
2 · What you turn in

Pre-lab: Completed SDS checklist (Sections 2, 4, 8) plus a photo of your initialized, dated notebook page.

Turn this in at the drop folder with your district Microsoft sign-in, or hand it to Mr. Mendoza in class. Both count as submitted. Doing the activity in myPLTW does not. Use the checklist just below and upload by 11:29 PM for full credit. Absent with an excused absence? You get two school days for every day you were absent, so this deadline moves with you.

3 · Who's doing what (team)
TaskWho
Create notebook sections for objective, data, analysis, and reflection, then date page one._______
Locate the eyewash, sharps container, and SDS binder in the lab._______
Open one SDS and find the hazards (Section 2), PPE (Section 8), and first aid (Section 4)._______
Put on the correct PPE for a mock -handling task and have it checked._______
Submit your initialized notebook page and completed /SDS checklist._______

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 can record a dated, labeled lab-notebook entry.
  • You can find hazards, PPE, and first aid on any SDS and gear up correctly.
6 · Reflection & next steps
Where are you today?0/7 checked
Pick your period and code first.
Your 4 steps today
  1. 1
    Do this
    Set up a dated HBS lab notebook and pass a PPE and SDS safety practical.
  2. 2
  3. 3
    Submit this
    Pre-lab: Completed SDS checklist (Sections 2, 4, 8) plus a photo of your initialized, dated notebook page.
  4. 4
    Submit it here
    1. 1Open the drop folder.
    2. 2Sign in with your district Microsoft account, not a personal one.
    3. 3Upload the file, named Lastname_Firstname__Assignment Title.
    4. 4Your own upload panel says Uploaded with a green check: that is your receipt.
    Turn this in at the drop folder with your district Microsoft sign-in, or hand it to Mr. Mendoza in class. Both count as submitted. Doing the activity in myPLTW does not. Human Anatomy & Physiology (Human Body Systems) › Course Launch: PLTW access, BioDigital/Maniken routines, lab notebook, PPE/SDS, anatomy language, measurement norms. › Pre-lab
    Open the drop folder
Were you absent? Jump to the make-up plan
Learn it · deck, reading, and vocabulary
Socratic teaching slide deck

The deck carries the prior idea forward, lets you inspect an analogy, maps the rule to biology, and ends with the same evidence decision and exit ticket used on this page.

Generated from this lesson's canonical data with a red-team citation check.

Carry forward

The body maintains a stable internal environment through continuous negative-feedback loops.

Daily take-home

Safe lab practice begins with reading the SDS and using the correct personal protective equipment before handling any or chemical.

Inspect the analogy

A pilot uses a preflight checklist before the aircraft moves.

  1. Which checks happen before action?
  2. Which hazard does each check control?
  3. What happens if a familiar step is skipped?
Rule

A routine works when each action controls a named hazard before exposure begins.

Where it breaks

A laboratory hazard can change during a procedure, so students must keep monitoring conditions after the checklist.

Map the analogy to biology
  • Preflight checks map to PPE and setup.
  • Aircraft hazards map to chemical, biological, heat, or sharps hazards.
  • Go or no-go maps to the pre-lab readiness decision.
Read this first

Driving question: You are about to handle a preserved for the first time. What do you check, and what do you put on, before your gloves touch it?

What you already know: The body maintains a stable internal environment through continuous negative-feedback loops.

New idea: Safe lab practice begins with reading the SDS and using the correct personal protective equipment before handling any or chemical.

Visual or model: F1. F1. A lesson illustration or teaching diagram for Lab notebook and safety practical. Use it with E1-E3; it is a model or context image, not experimental or patient data. What to notice: Trace the labeled structure, movement, or system relationship that connects form to function.

  1. Observe or measure the relevant feature in Lab notebook and practical.
  2. Organize the observation with a stable evidence ID.
  3. Apply this rule: A routine works when each action controls a named hazard before exposure begins.
  4. Choose the option the evidence supports and state the limit of the conclusion.

Real biomedical example: You are about to handle a preserved for the first time. What do you check, and what do you put on, before your gloves touch it?

What the evidence supports: E1-E3 and F1 support the daily take-home when the response meets the stated success criteria.

What it cannot prove: The package does not support claims beyond this lesson's or any real patient diagnosis.

Vocabulary:
  • : The study of the body's structure and how its parts are arranged, from whole organs down to individual tissues and cells.
  • physiology: The study of how the body's parts function and work together to keep an organism alive and healthy.
  • : The body's ongoing process of keeping internal conditions like temperature, blood sugar, and pH steady despite changes in the outside environment.
  • : A direction term meaning toward the front of the body, such as the chest being to the spine.
  • : An anatomical direction meaning toward the back of the body or behind another structure.
  • : A direction term meaning closer to the point where a limb attaches to the body, such as the elbow being to the wrist.
  • : An anatomical direction meaning farther from the point where a limb attaches to the body or from the origin of a structure.
  • : An anatomical direction meaning toward the head or upper part of the body, the opposite of .

Use it now: Choose one decision option. Cite E1 and E3, then explain how the rule connects the evidence to your choice.

Go further, optional: The source links below are optional enrichment. Every fact required for today's local evidence decision appears in this lesson package.

Evidence set and decision
E1 · Observation

A Data Sheet (SDS) has 16 sections; Section 2 lists hazards, Section 8 lists required PPE, Section 4 covers first aid.

Limit: E1 supplies context or an observation; it does not by itself establish the explanation.

E2 · Mechanism

Safe lab practice begins with reading the SDS and using the correct personal protective equipment before handling any or chemical.

Limit: E2 is a teaching statement or comparison and must be checked against the task evidence.

E3 · Result

You can record a dated, labeled lab-notebook entry.

Limit: E3 supports only the result or product criterion named here; it cannot justify a broader clinical or causal claim.

PLTW-HAP-2027-02-01 · Simulated classroom evidence scenario

Your role: anatomy and physiology consultant

Decision: Your team must decide what the evidence from Lab notebook and practical supports before submitting the pre-lab readiness record named on the lesson page.

  • Proceed because the readiness evidence is complete.
  • Pause and correct the named setup or gap.
  • Repeat the measurement because quality controls are not acceptable.

Response: State one choice, cite at least two evidence IDs, explain the rule that connects them, and add one limitation. Submit it as the pre-lab readiness record.

Claim ceiling: The supplied lesson evidence can support an observation, pattern, classroom mechanism, or next-step decision about Lab notebook and practical. It cannot by itself prove causation, establish a real clinical diagnosis, or justify action outside this classroom task.

Composite case file · PLTW-HAP-2027-02-01

Reason for review: Your team must decide what the evidence from Lab notebook and practical supports before submitting the pre-lab readiness record named on the lesson page.

Context: Safe practice begins with reading the SDS and wearing the right PPE, because you protect yourself before you ever pick up a .

Timeline:
  • T1: Create notebook sections for objective, data, analysis, and reflection, then date page one.
  • T2: Locate the eyewash, sharps container, and SDS binder in the lab.
  • T3: Open one SDS and find the hazards (Section 2), PPE (Section 8), and first aid (Section 4).
  • T4: Put on the correct PPE for a mock -handling task and have it checked.
  • T5: Submit your initialized notebook page and completed /SDS checklist.
Evidence records:
  • E1: A Data Sheet (SDS) has 16 sections; Section 2 lists hazards, Section 8 lists required PPE, Section 4 covers first aid.
  • E2: Safe lab practice begins with reading the SDS and using the correct personal protective equipment before handling any or chemical.
  • E3: You can record a dated, labeled lab-notebook entry.

Measurements: No patient measurement is supplied unless it appears explicitly in E1-E3 or F1. Do not invent a value.

Figure finding: Teaching diagram for Lab notebook and practical. Trace the labeled structure, movement, or system relationship that connects form to function. This is a teaching model, not patient or experimental data.

Uncertainty: This is a composite classroom scenario. Missing history, measurements, or confirmation tests remain unknown and limit the conclusion.

Watch the trap

Students often think gloves are enough for lab . The trap: the SDS tells you which PPE the specific hazard needs, and Section 8 may require goggles and a coat, not just gloves

Worked example · a parallel case (guides, does not reveal)
SDS safety checklist plus initialized notebook page
Completes: A completed safety checklist that records the hazards, required PPE, and first-aid information found on a Safety Data Sheet, paired with a photo of your set-up, dated lab notebook page.

SDS Checklist (for the chemical I was assigned):

  • Section 2 (Hazards): the SDS lists the product as causing skin and serious eye irritation. Signal word: Warning.
  • Section 8 (PPE): requires safety goggles, nitrile gloves, and a lab coat or apron.
  • Section 4 (First aid): for eye contact, rinse with water at the eyewash for at least 15 minutes and seek help; for skin contact, wash with soap and water.

PPE I put on for the mock task: goggles, gloves, lab coat. Checked by my partner.

Lab equipment I located: eyewash station (back left sink), sharps container (by the door), SDS binder (on the supply shelf).

Notebook page one (dated):

  • Objective: set up my HBS lab notebook and pass the PPE and SDS safety check.
  • Data: SDS sections recorded above; PPE check passed.
  • Analysis: I can find hazards in Section 2, PPE in Section 8, and first aid in Section 4 of any SDS.
  • Reflection: I now know to read the SDS before touching any chemical or specimen.
Why this matters

This model shows the level of evidence and organization needed to complete: A completed safety checklist that records the hazards, required PPE, and first-aid information found on a Safety Data Sheet, paired with a photo of your set-up, dated lab notebook page.

Build yours step by step
  1. Identify the purpose, hazards, and required controls.
  2. Write the procedure in a usable order.
  3. Confirm materials, measurements, and waste handling before starting.
Change it for a new task

Keep the structure. Replace the question, facts, measurements, and evidence. Then recheck units, vocabulary, and whether the conclusion goes beyond the evidence.

Also due today: Submit the checklist and the dated notebook photo together as one PDF or combined photo upload.

See the full worked example
Portal terms
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.
This unit's vocabulary
/uh-NAT-uh-mee//hoh-mee-oh-STAY-sis/

Tap the speaker to hear a term. Add two of these to your notebook glossary with a definition and an example in your own words.

Build your vocabulary · optional, for extra credit

Pick just 2 or 3 words from today and make them yours: write what each one means in your own words, name the context clue or evidence that helped, then give one example from what you actually did in Lab notebook and safety practical. Try your own words first; the glossary is there if you get stuck. This is voluntary and counts as extra credit, so keep it short.

anatomy
physiology
homeostasis
anterior
posterior
proximal

Saved on this device. Show Mr. Mendoza or add these to your notebook glossary to claim the extra credit.

Resources & readings
Unit notebook (fillable)

A fillable, Cornell-style notebook for Unit 1: Road to Rehabilitation. Type your notes, cues, and summaries right in the PDF, or print it and write by hand. Each lesson page has a cue column, a notes column, and a summary box, plus dated lab-record pages you can turn in.

HBS Unit 1 notebook: Road to Rehabilitation Fillable PDFCornell notes + lab recordsOpen
Teacher-posted resources

Classroom documents for this lesson are posted in Schoology. Open Clever, then Schoology, and find each one by the name shown on its card.

Use during lessonFor: Everyone
PLTW HBS course overview (units and what is coming)
worksheet/handoutPosted in Schoology
Open in Schoology

Use this as the classroom resource for HBS launch and body systems overview.

Placement rationale

Matched HBS launch and body systems overview by path:Human-Body-Systems/00-Course-Planning; keywords:body systems. Score 130. Visibility: student-schoology (student-facing resource; link through Schoology rather than local path).

How to get there: open Clever and sign in with your Microsoft (district) account. Both myPLTW and Schoology are in Clever. Do the activity in myPLTW. Turn the work in on this site or hand it to Mr. Mendoza, because that is the step that counts as submitted. Schoology only shows your report-card grade later.

Check yourself · commit, then reveal

Claim ceiling for this check: The supplied lesson evidence can support an observation, pattern, classroom mechanism, or next-step decision about Lab notebook and practical. It cannot by itself prove causation, establish a real clinical diagnosis, or justify action outside this classroom task.

Quick self-check · commit, then reveal

Which SDS section tells you the required PPE, and why check it before handling a specimen?

How sure are you?

Write an answer and pick a confidence to unlock the key.

Cumulative WebXam review · flash practice

Fast retrieval with instant answers, not the commit-then-reveal check above. Try each from memory first: write what you remember about the earlier units, then check yourself here.

Tap an answer to check it · nothing is recorded or graded
[Review: Orientation: how we learn in Human Body Systems] What is the WebXam?
Which statement best distinguishes anatomy from physiology?
Go further and get help
Lab · prepare, conduct, complete
1Prepare
Pre-lab pass · clear all six to go to the bench
0/6

I can name the procedure's purpose and the evidence I will record. I can identify each named hazard and the control that reduces it: Goggles and gloves must be on before handling any specimen or chemical in this class. My data table is ready before materials are handled.

Finish the checklist before you handle any material.

Bring / set up
Disposable gloves (nitrile, appropriate size)Safety gogglesLab coat or disposable apronSDS binder (already in lab)Composition notebook or bound lab notebookPencil or pen
Safety · specific to today's hazards
  • Goggles and gloves must be on before handling any specimen or chemical in this class.
  • Know the location of the eyewash station before beginning any lab.
  • Never recap needles or put sharps in the regular trash; use the sharps container.
  • Wash hands with soap and water after removing gloves.
Review Lab Safety (rules, PPE, SDS, emergencies) and check your contract + test
2Conduct (Argument-Driven Inquiry)
  1. 1Before materials are handled, identify the purpose, variables or comparison, controls, measurement units, and stop-work condition.
  2. 2Create notebook sections for objective, data, analysis, and reflection, then date page one.
  3. 3Locate the eyewash, sharps container, and SDS binder in the lab.
  4. 4Open one SDS and find the hazards (Section 2), PPE (Section 8), and first aid (Section 4).
  5. 5Put on the correct PPE for a mock specimen-handling task and have it checked.
  6. 6Submit your initialized notebook page and completed safety/SDS checklist.
  7. 7Record each result in the prepared table before interpreting it. Mark missing, repeated, or invalid results truthfully.
  8. 8Complete the named cleanup and waste route, remove PPE safely, wash hands when required, and confirm the station is ready for the next group.
Prepare this data table before materials are handled
Trial or sample IDIndependent conditionMeasured result with unitsObservation before interpretationQuality-control note
     
     
     
CDC Laboratory Safety
3Complete
Argue from your evidence, then compare what you predicted to what happened. Error analysis names a specific method limit, never "human error".
You predicted

Before the procedure, predict the result and cite the rule behind the prediction.

What actually happened

After the procedure, compare the result with the prediction and name one limitation or source of uncertainty.

Your lab report is graded on the rubric below, with extra weight on error analysis and method.
Where this leads: careers
What to do if you were absent
Today was a lab: do this instead

Complete the SDS scenario: read a provided Data Sheet, identify hazards, required PPE, and first-aid response, then write a short handling plan and a sample dated notebook entry for the task.

CDC: Laboratory safety

Then submit your Pre-lab. Turn this in at the drop folder with your district Microsoft sign-in, or hand it to Mr. Mendoza in class. Both count as submitted. Doing the activity in myPLTW does not.

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 Laboratory Safety
How this is graded
For: Pre-lab: Completed SDS checklist (Sections 2, 4, 8) plus a photo of your initialized, dated notebook page.
  • 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, on the class site or handed to Mr. Mendoza in class, and confirmed. Not in Schoology: that is where the report-card grade appears later.
  • Error analysis and method · counts double
    Name a specific limit of the method and how it moved your result, and compare what you predicted to what happened. "Human error" does not count; say what about the procedure or instrument caused it.