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The role of models TOK presentation
Transcript of The role of models TOK presentation
In middle school
What is a model?
Models and TOK
Link back to RWE
Application to the world beyond RWE
To what extent can we use model as a valid representation of the knowledge in real world?
In high school
The most basic vesion
goods & services
One glance solves everything
The power of metaphor
If you can't see then imagine...
goods & services
Difficulties in conducting experiment
Evaluation: Two groups of people
Just the gist
As profound as possible
Human activities and personalities, which are the subject in human science, are too complex to be pinned down and studied
A simplified version of reality
They are just what men think they are
The wrongs are still valuable
Representation (physical object, schematic illustration or worded description) of phenomena, objects or complex processes.
3. Some models, although simplified, are useful.
4. A"wrong" model can be the portal to another better model.
1. Models ≠ knowledge in reality
2. Models can be influenced by bias
Students studying what the Earth is like as the teacher of the Natural Science showing them the Globe.
how the earth looks,
how the continents are placed,
the size of the oceans, etc. (color of the continents and ocean)
The names of countries, continents and seas,
which help in identification.
Natural Geography Class
Evaluation: 2 groups of people
Useful to understand knowledge
Not so useful to do investigation
Each model is a specific version of the real world and serves its own purpose. Generally the more detailed the model, the closer it is to reality
Suppose its 10:01 now
The test of utility makes the first model better than the other one even though it is not true.
Limitations： doesn't necessarily apply to all situations
Those who use models
The realization of the difference between models and reality
use of different different models
Those who make models
Be aware of
limitation of simplification
Simplified, inaccurate, but still correspondent
Sometimes we can not know the truth, thus can not see whether the model is correspondent with it or not
The model is based on Keynesian
The maker was a supporter of Keynesian
Incoherent with the Monetarists' belief
1. It is 10:00 a.m.
2. It is between 3:00 a.m. and 3:00 p.m.
Not comprehensive enough
...and others (will be further discussed in 3 Tests of Truth later)