how the brain learns: new and exciting findingsconference.ntu.edu.sg/asaihl/documents/ppts/keynote 1...
TRANSCRIPT
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How the Brain Learns: New and Exciting
Findings2014 ASAIHL Conference
Nanyang Technological University Singapore
Thursday, December 4, 2014
Presenter: Dr. David A. Sousa
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Emergence of EDUCATIONAL NEUROSCIENCE (or Mind, Brain, and Education)
Psychology
Pedagogy Neuroscience
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200 billion neurons
00 100 billion
neurons
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Most Exciting
Discovery in Recent
Years
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The growth of new neurons
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Used with permission of:
Area for learning and for memory formation
Olfactory (smell) lobe
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Neurogenesis can be affected by:
DIET Restricting calories
Low Fat
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Neurogenesis can be affected by:
EXERCISE
Brain-derived Neurotrophic Factor (BDNF)
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Neurogenesis can be affected by:
SLEEP LOSS
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Brain’s Plasticity
Its ability to continually learn and reorganize itself as a result of input from the environment
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Frontal Lobe Limbic
area Prefrontal cortex: Decision making, problem solving, etc.
(Processes emotional information and responses)
Cerebellum (learned motor skills)
Rational area
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LimbicFrontal
Development of the Brain’s Limbic Area and Frontal Lobes
Age in Years
% D
evel
opm
ent
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Brief mention of gender differences
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Gender variations in acquiring spoken language and other skills
Girls More young girls
acquire spoken language skills faster and easier than more young boys.
Boys More young boys
acquire visual, spatial, and temporal skills faster and easier than more young girls.
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FRONT FRONT
BACK BACK
R LL R
MALE FEMALE
Processing Phonetic Language Composite fMRIs
Contextual Elaborative Source: Shaywitz et al. (1995). Sex differences in the functional organization of the brain for languages. Nature, 373, 607-609.
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What Is Teaching? Only profession whose job is to
change the human brain every day!
Teachers are BRAIN-CHANGERS!
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Incoming information
WORKING MEMORY:
Cognitive Capacity : 5-13 years: 5 ±2 Chunks ???? 14+ years: 7 ±2 Chunks ????
3-4, range unknown
Working (temporary) memory
(minutes to ?)
O U T ?
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Is technology affecting students’ attention span?
NOT YET
But demands on attention are increasing!
Homework
Gaming
iPod
Cell phone
etc…
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3 experiments compared students who wrote notes on paper to those who took laptop notes.
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Students who wrote out their notes:
• Had greater conceptual understanding of material
• Were more successful at integrating new material with what they already knew
• Were more successful at applying their new understandings
• Remembered more of the new learning
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What happened here?
• Writing by hand is slower
• Brain has to listen, process, and jot
down summary
• These cerebral processes enhance understanding and retention
Hmmm…that makes sense.
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Lesson to learn?
• Technology may be faster, but that doesn’t mean students will learn the content better.
Mueller, P. A., & Oppenheimer, D. M. (2014, June). The pen is mightier than the keyboard: Advantages of longhand over laptop note taking. Psychological Science, 25, 1159–1168.
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One interesting thing I learned in this session so far is: ___???____
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How much information is enough?
Too much information at
one time hinders cognitive
processing . . .
. . . Emotions take over
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Practice “Satisficing” Coping strategy: Take in just enough information to meet a specific need and ignore the rest.
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Prioritize Curriculum So Teachers Can Distinguish Between:
Enduring Understandings to Remember
Important to Know and Do
Worth Being Familiar With
Be Able to Find
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Students today are “digital natives”: They have never lived in a time without all this technology.
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Impact of Social(?) Media The pros and
Pro: Students can contact their peers anywhere in the world to share information, stories, research, etc.
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Impact of Social(?) Media The pros and
Pro: Cell phones give students immediate access to information and messages, no need to wait.
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Difficulty and ComplexityLevels of Bloom's Revised Taxonomy
CreateEvaluateAnalyzeApply
RememberUnderstand
Difficulty: Amount of effort expended within a level
Complexity: Thought process involved
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Incoming information
WORKING MEMORY:
Cognitive Capacity : 5-13 years: 5 ±2 Chunks ???? 14+ years: 7 ±2 Chunks ????
3-4, range unknown
Working memory (minutes to ?) Long-term memory
(days to ?) O U T Long-term storage
more likely with: SENSE:
Do I understand it?
and MEANING: What’s it got to do with ME?
Higher-order processing
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Creativity: As measured by solving open-ended problems
Intelligence: As measured by solving closed-
end problems
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Devise uniquetests
Offer uniqueexplanations
Distinguishbetween cause
and effect
Formulateunique
questions
No. of studentquestions
raised per classperiod
Creative approach Traditional approach
Source: Yager, R.E. (2007). STS requires changes in teaching. Bull. of Sci., Tech., & Soc., 27, 386-390
Percent of students
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Alternates tasks Sequences tasks
A B A B C
Always some loss
Always some interference
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What implication does this have for instruction?
Better to complete one topic/project
before moving to another.
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Brain growth &
development
How learning occurs in the
brain
How teachers can be
successful with more students
Educational Neuroscience
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E-mail: [email protected]
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