Thoughts?

  • Which of these atomic models have you seen before?
  • If more than 1, what was the context?
  • Why has the way we model an atom changed over the last 200 years?

What’s in the box?

Each group will be given a mystery box.

  • You will have 5 minutes with each box to sketch and label what you think is inside.
  • Afterwards, the whole class will have 10 minutes to decide on a single model for each box.

So, what’s actually in the box?...

  • (CL5) Respond to the contributions of others

  • (CL6)Compromise where necessary

I don’t know !!!

It is tempting to think that we have to ‘see’ something to know it but in the natural sciences things are often too small to ‘see’.

Modelling might be the best we can do.

  • How could we improve our understanding of what’s in the box if given an unlimited budget but still unable to open the box?
  • How certain can we be of the contents?
  • Is ‘seeing’ the best way to know?

Actually, I do know…

Box 1 - Two screwed up plastic wallets, 1 large steel ball, 1 small steel ball.

Box 2 - Two spoons, five 5 cent coins, one rubber, one large steel ball.

Box 3 - Five 5 cent coins, two pens, four folded pieces of card.

Box 4 - Two spoons, four folded pieces of card, two pens, one rubber.

Conceptual understandings in ToK

What are conceptual understandings?

Conceptual understandings describe the relationship between two or more concepts.

If we have conceptual understanding then we can use it in different contexts.

How to write a conceptual understanding

concept [+ qualifier] + verb + concept

Accurate predictions increase reliability of scientific knowledge.

What are conceptual understandings?

concept [+ qualifier] + verb + concept

Accurate predictions increase reliability of scientific knowledge.

In a pair, write 2 conceptual understandings for the natural sciences.

Perhaps use the TOK concepts from this slide.

A good CU should be able to tick the boxes to the right →

How can we make use of these?

Write down 3 of these conceptual understandings and try to find a real-life example that demonstrates it.

Accurate predictions increase reliability of scientific knowledge.

The prediction of planetary movement gave Newton greater confidence in his idea that there is a law for the behaviour of gravity.

In summary…

The natural sciences

Thoughts?

Add your name to this Padlet shelf and add the following about the formation of knowledge in the natural sciences. Title the post ‘The Natural Sciences’.

  • One strength might be…
  • One weakness might be…
  • One thing I have never considered before is…
  • One question I still have is…

Extra resources

TOK concepts: For making conceptual understandings

meaning

judgement

perspective

value

evidence

justification

fact

interpretation

assumption

opinion

belief

paradigm

hypothesis / conjecture

theory

prediction

… durability

… accuracy

explanation

Independence /

dependence / interdependence

technology

certainty

reliability

probability

accuracy

precision

experience

correlation

causality

coherence

consistency

completeness

clarity

model

pattern

axiom

context

authority

generalisation

NS3 - Modelling and conceptual understandings - Google Slides