What analogy exist in this statement? What are some similiar analogies?

Students 'work' with knowledge. The word 'work' implies the analogies.

Bruner talk about the similiar analogy: students contribute to the growth of knowledge in the community.

The normal science part: using analogy to reason, using physical models, the existing of normal science. The similiarities between these, and the difference

For example, by Bruner, Bereitor.