1. To what extent are models useful as a tool of acquiring knowledge?

2. Name examples of models that are used in other disciplines, for example, geography, natural sciences, mathematics.

3. What are the common limitations of models? Think about the inevitable simplication.

4. If models simplify reality, why use them in the production of knowledge?

After you familiarize yourself with the computer metaphor in psychology, answer this question: why does the computer metaphor qualify as a model?