chemistry is hard why?. blooms taxonomy l psychologist who studied how people think l broke thinking...
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Chemistry is Hard
Why?
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Bloom’s TaxonomyPsychologist who studied how people
thinkBroke thinking into levels of complexityEach level required using the
information belowThe lowest level is knowledge-
memorizing textbook definitions Easiest but least useful
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Bloom’s TaxonomyUnderstanding- being able to put the
knowledge into you own wordsApplication- being able to use the
information in new situationsAnalysis- breaking the information into
meaningful piecesSynthesis- being able to put information
together to generate new learning
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Bloom’s TaxonomyEvaluation- using all the information,
making and defending value judgments about the information.
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Knowledge
Understanding
Application
Analysis
Synthesis
Evaluation
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What does this have to do with chemistry?
In the past, many of your classes relied on memorization.
Knowledge levelChemistry focuses on the higher levels. I don’t ask you to memorize a lot of terms I ask you to learn processes and
techniques and then apply them to novel situations
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EvaluationSynthesisAnalysisApplication
Understanding Knowledge
25%
50%
25%
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Word Clues How hard do I have to think?Knowledge
– Who, what, where, when, tell, label, define, select, choose, identify, describe, recall
Comprehension– Show, explain, discuss, classify,
recognize, summarize, paraphrase
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Word Clues Application
– Use, solve, teach, relate, explain, predict, compute, illustrate, simulate, demonstrate
Analysis– Probe, dissect, outline, compare,
organize, diagram, distinguish, investigate, categorize
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Word Clues Synthesis
– Plan, make, invent, develop, design, propose, predict, assemble, formulate, hypothesize
Evaluation– Rate, judge, revise, critique, defend,
justify, assess, contrast, support, recommend, conclude, interpret
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Information Processing Theory
Describes how we learn something new
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Information Processing Theory
Filters what we know What we pay attention to moves on
SensoryRegisterLess thana second
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Information Processing Theory
Room for 7 things (on average) Less than a minute
SensoryRegisterLess thana second
Short- termMemory
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Information Processing Theory
If we process it further it stays with us To learn something requires practice
SensoryRegisterLess thana second
Short- termMemory
LongTermMemory
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Memory TechniquesRehearsal- repetitionChunking- grouping the information into
meaningful categoriesRemembering general rules is easier
than every specific instanceWe learn best by connecting new
knowledge with old knowledgeROY G BIV
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Another Reason Chemistry is hard
Requires math skills.Uses math to explainPrerequisiteAlgebra is used in this class regularly.Used to describe the world around us
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What can you do?
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LaboratorySafety Rules
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While working in the science laboratory, you will have certain important ____________________ that do not apply to other classrooms. You will be working with materials and apparatus which, if handled carelessly or improperly, have the potential to cause __________________ or discomfort to someone else as well as yourself.
responsibilities
injury
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A science laboratory can be a safe place in which to work if you, the student, are foresighted, alert, and cautious. Violating any of the following regulations will result in you being _______________ from class or ______________________ from the class. The following practices will be followed:
suspendedpermanently removed
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1. An _________ must be present during the performance of all laboratory work.
2. Report any accident to the __________ immediately, no matter how_________, including reporting any burn, scratch, cut, or corrosive liquid on skin or clothing.
3. Prepare for each laboratory activity by ________ all instructions before coming to class. Follow all _________ implicitly and intelligently. Make note of any _________ in procedure given by the instructor.
instructor
teacherminor
readingdirections
modification
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4. Any science project or individually planned experiment must be __________ by the teacher.
5. Use only those materials and equipment _________ by the instructor.6. Inform the teacher ____________ of any equipment not working properly.
7. Clean up any nonhazardous _______ on the floor or workspace ____________.
approved
authorized immediately
immediately spill
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8. Wear appropriate ______________, as directed by the instructor, whenever you are working in the laboratory. Safety goggles must be worn during hazardous _________ involving caustic/corrosive chemicals, heating of liquids, and other activities that may injure the eyes.
eye protection
activities
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9. Splashes and fumes from hazardous chemicals present a special danger to wearers of _____________. Therefore, students should preferably wear regular glasses (inside splash -proof goggles, when appropriate) during all class activities or purchase personal splash-proof goggles and wear them whenever exposure to chemicals or chemical fumes is possible.
10. Students with _________________ on hands must wear gloves or be excused from the laboratory activity.
contact lenses
open skin wounds
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11. Never _______ hot equipment or dangerous chemicals through a ______ of students.
12. Check ______ and equipment instructions carefully. Be sure correct items are _______ in the proper manner.
13. Be aware if the _________ being used are hazardous. Know where the material safety data sheet (_______) is and what it indicates for each of the hazardous chemicals you are using.
carrygroup
labels
usedchemicals
MSDS
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14. Never ______ anything or touch chemicals with the hands, unless __________ instructed to do so.
taste
specifically
wavingdistance
laboratory not
15. Test for odor of chemicals only by ______ your hand above the container and sniffing cautiously from a _________.
16. Eating or drinking in the ____________ or from laboratory equipment is _____ permitted.
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17. When heating material in a test tube, do not ______ into the tube or point it in the direction of any person during the process.
18. Never pour _________ back into bottles, exchange stoppers of bottles, or lay stoppers on the table.
19. When diluting _____, always pour acids into _______, never the reverse.
look
reagents
acidswater
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20. Wash hands as necessary and wash thoroughly at the __________ of the laboratory period.
21. To treat a burn from an acid or alkali, wash the affected area ___________ with plenty of running water. If the eye is involved, irrigate it at the eyewash station without interruption for ___ minutes. Report the incident to your ___________ ______________.
immediately
conclusion
15instructor.
immediately
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22. Know the _________ of the emergency shower, eyewash and facewash station, fire blanket, fire extinguisher, fire alarm box, and exits.
23. Know the proper fire and earthquake drill _____________.
24. Roll long sleeves above the _______. Long, hanging necklaces, bulky jewelry, and excessive and bulky clothing should not be _____ in the laboratory.
25. Confine long hair during a __________ activity.
location
procedures
wrist
laboratory
worn