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Laboratory Safety: It’s not a matter of if, but rather, when. Think Fast. How many students should be in a science laboratory? What does MSDS stand for? What has MSDS? What basic safety equipment should be in every lab? What kind of fire extinguishers should most labs have?

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Presentation Transcript
think fast
Think Fast
  • How many students should be in a science laboratory?
  • What does MSDS stand for?
  • What has MSDS?
  • What basic safety equipment should be in every lab?
  • What kind of fire extinguishers should most labs have?
  • When should goggles be worn?
  • What kind of goggles should be worn?
  • What are the 4 classes of chemical hazards?
  • What is a chemical hygiene plan?
think fast3
Think Fast
  • How many students should be in a science laboratory? 24
  • What does MSDS stand for? Material Data Safety Sheets
  • What has MSDS? All chemical products
  • What basic safety equipment should be in every lab? Fire extinguisher, fire blanket, shower, eye wash
  • What kind of fire extinguishers should most labs have? ABC tri-class chemical
  • When should goggles be worn? Any time fire or chemicals are used
  • What kind of goggles should be worn? ANSI Z87 (American National Standards Institute)
  • What are the 4 classes of chemical hazards?

flammability, corrosivity, toxicity, reactivity

slide4
9. What is a chemical hygiene plan?

A comprehensive plan for identifying and dealing with chemical hazards including lab rules, procedures, chemical procurement, storage, distribution, environmental monitoring, housekeeping, maintenance, inspections, records, signs & labeling, spills & accidents, training & information, waste disposal and safety recommendations.

things you should do before the students arrive
Things you should do before the students arrive.
  • Check for basic safety equipment (extinguishers, blankets, showers, goggles, eye wash).
  • Check for mercury thermometers.
  • Organize chemicals appropriately.
  • Talk to administration/dept. chair about mystery substances.
  • Make sure chemicals are secure from students.
  • Find out where the nearest phone is.
  • Familiarize yourself with the MSDS for the chemicals you will have students use.
  • Ask about the school’s chemical hygiene plan.
  • Check the ventilation of your room.
  • If you use bases, make sure you have acetic acid available; acids, sodium bicarbonate; bacteria or DNA, 5% disinfectant or 10% bleach.
  • Know where your master cut-off switches/valves are
flinn catalog
Flinn Catalog
  • When you have an official teaching position & school address, request a Flinn catalog:

Flinn Scientific

P.O. Box 219

Batavia, IL 60510-0219

http://www.flinnsci.com/

cases
Cases
  • The authors talk about teaching by means of “tricks of the trade” vs. thoughtful practice. What is the difference?
  • What is a case? How is it different from a case study?
  • What do the authors mean by context?
  • How does a case-based approach to exploring teaching relate to or reflect constructivism?
  • What are open and closed cases?
case 11 2
Case 11.2
  • In what ways was Ms. Lendell an effective mentor?
  • How can a student teacher develop his/her own style with a “overly supportive” cooperating teacher?
  • Check out Julie Guess-Newsome’s prioritized list of teaching concerns (p. 282). What is your reaction to this list? Do you agree that teachers can only work on one thing at a time?