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Online Course for Teachers: Teaching Evolution

About this Course 

SESSION 1

SESSION 1: What Is the Nature of Science?

Explain Part B: Isn't Evolution Just a Theory?

Theory is at the heart of science and Darwin's theory of evolution by natural selection is one of the strongest.

Image of a crab.

Isn't Evolution
Just a Theory?

View in:
QuickTime | RealPlayer

In science, the following definitions are particularly important:

Fact
Law
Hypothesis
Theory

View definitions


Watch the Video for Students: "Isn't Evolution Just a Theory?" and consider:

How does the scientific meaning of the term theory differ from the way that many people use it in everyday life?

How does a theory differ from a hypothesis?

How do scientists use both inference and directly observed evidence to test hypotheses and develop theories? What is their relative importance?

Why is Darwin's theory of evolution considered to be a strong theory?

To read more about science, see the online version of Teaching About Evolution and the Nature of Science

 

Facilitator Note 5

 

Next: Elaborate Part A: What Can't Science Do?

 

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