ContextZonder kennis van dee context van een gebeurtenis is het moeilijk, zoals niet onmogelijk deze gebeurtenis betekenis te geven. |
Albert van der Kaap, Enschede, albert@vanderkaap.org
'Monsieur Clark, ik heb niet alleen deze artikelen nodig... maar ook de kranten waaruit ze zijn geknipt. En wellicht alle kranten van een week voor tot een week nadat elk artikel is geplaatst...Die knipsels zijn niet afdoende, monsieur. Uit datgene wat de informatie omringt, is net zoveel af te leiden als uit de stukjes zelf....U hebt een groot deel van de kondschap in elk artikel opgeofferd door haar aan hara pagina te ontrukken.'(1)
Het belang van de context
In de rechter kolom staat een korte Engelse tekst. Bij lezing zonder de titel is het buitengewoon moeilijk betekenis te geven aan de tekst. En dat terwijl de lezer elk woord in de tkets zal begrijpen.Als aan de tekst een titel wordt toegevoegd vallen ineens alle stukjes op hun plaats. Uit een onderzoek van Bransford en Johnson (1972) bleek dan ook dat mensen die deze tekst bestudeerden inclusief de titel, bijna twee keer zoveel informatie onthielden als mensen die de titel niet te zien kregen.
Voorkennis, in dit geval over het vliegers, zo blijkt uit dit onderzoek, is weliswaar noodzakelijk, maar niet voldoende. Deze voorkennis moet worden geactiveerd door aanwijzingen over de context waarin de aangeboden informatie wordt gebruikt. In de groep die de titel niet te zien kreeg werd de voorkennis (die wel beschikbaar was) duidelijk niet geactiveerd.
Duncan Godden en Alan Baddeley (1975)
Putting yourself back in the context where you experienced something can prime
your memory retrieval. Duncan Godden and Alan Baddeley (1975) discovered this
when they had scuba divers listen to a list of words in two different settings, either 10
feet underwater or sitting on the beach. As FIGURE 9.16 illustrates, the divers recalled
more words when they were retested in the same place.
Consider this scenario: While making notes in this book, you realize you need to
sharpen your pencil. You get up and walk downstairs. When you get there, however,
you cannot remember why you came. After trying to recall your purpose, you give up
and return to your desk. As soon as you sit down to work again, it hits you: “I wanted
to sharpen this pencil!” What happens to create this frustrating experience? In one
context (desk, reading psychology), it occurs to you that you want the pencil sharpened.
When you get up and go downstairs, you move into a different context where
you have few cues to lead you to the thought that brought you there. When you give
up and go back to your desk, you are back in the context in which you encoded the
thought (“This pencil is dull”).
Major
theme of active learning.
Fish is fish story
Making Meaning
1. Pre-existing knowledge- fish is fish
People construct new knowledge and understanding based
on what they already know and believe.
i. They come to the classroom, lab or
clinic with preconceived ideas.
If these ideas are not understood by the teacher, they
may not learn fully or well. (learning that 1/8 is less
than ¼ even though 8 is greater than 4)
Misconceptions of physical properties that cannot be
easily observed—acid base regulation. Students at a
famous east coast college persist in their beliefs that
the changes in the seasons were due to the earth’s
distance from the sun rather than its tilt on its axis.
In behavior, this includes stereotypes.
ii. For scientific understanding to replace
the naïve understanding students must reveal the latter
and have the opportunity to see where it falls short.
This requires a safe learning environment, which must be
constructed actively.
ASK THEM: GIVEN THE ROLE OF PRE-EXISTING KNOWLEDGE, WHAT
DO THEY THINK THE ROLE OF THE TEACHER IS? If students’
initial ideas and beliefs are ignored, the understanding
they develop can be very different from what the teacher
intends.
How much time do we spend with remediation, with
students who need extra work or are struggling to learn
New knowledge is constructed from existing ideas,
experiences and concepts. I
Sense Making
Without knowing this history you are in the dark and
risking ineffective teaching.
The role of the teacher – need to pay attention to the
inconsistencies and incomplete understandings, false
beliefs and naïve versions of core concepts that
learners have and bring to the learning experience.
i. And then teachers need to elicit this from
learners and build on it or challenge the initial
understanding.
This requires active inquiry by the teacher- not just
delivering pearls and waiting for the assessments to see
who got it.
Formative assessment and Feedback are two key tools here
i. Formative Assessment – for teacher and
student both
ii. Feedback – labs, clinics, discussion groups
Building bridges – if students’ initial ideas and
beliefs are ignored, the understanding that they develop
can be very different from that intended by the teacher.
E.g. Kids who believe that the earth is flat, when told
it is round, envision a pancake rather than a sphere.
When told it’s a sphere they envision a pancake on top
of a sphere or inside of it.
Constructivism – making sense can occur in a lecture
hall while listening to a presentation, however as we
saw earlier, if learners first grapple with the material
and then have an organized lecture, the learning and
transfer is enhanced.
This is a strong argument for Active learning. Having a
case, a set of cases or problems to grapple with can
create a need to know. just like in the clinic or lab
when learners encounter an unknown and are motivated to
learn, to seek out new information and make sense out of
it in relation to the problems with which they are
grappling.
There is good evidence that shows that learning is
enhanced when teachers pay attention to the knowledge
and beliefs that learners bring to a learning task, and
use this knowledge as a starting point for their
instruction.
Noten
1. Pearl. Matthew, 2006, De schaduw van Poe, 140
Literatuur
Bransford, J.D., & Johnson, M.K. (1972). Contextual prerequisites for understanding: Some investigations of comprehension and recall. Journal of Verbal Learning and Verbal Behavior, 11, 717-726.
Duncan R. Godden and Alan D. Baddeley, 'Context-dependent memory in two natural environments: On land and under water', British Journal of Psychology, 66, 1975, pp.325-331.
Context
Making and flying a kite
A newspaper is better than a magazine. A seashore is a better place than the street. At first, it is better to run than to walk. You may have to try several times. It takes some skills but it’s easy to learn. Even young children can enjoy it. Once successful, complications are minimal. Birds seldom get too close. Rain, however, soaks very fast. Too many people doing the same thing can also cause problems. One needs lots of room. If there are no complications, it can be very peaceful. A rock will serve as an anchor. If things break loose from it, however, you will not get a second change.
macht van het geld
Copyright: Albert van der Kaap, 2009