Flux (Noun)

1. A continuous moving on or passing by (as of a stream)

2. A continued flow : FLOOD

https://www.merriam-webster.com/dictionary/flux

In the article, “Revision Strategies of Student Writers and Experienced Adult Writers” the author Nancy Sommers said, “This sense, however, is constantly in flux as ideas are developed and modified.”

In this sentence, Nancy Sommers used the word “flux” to say that students are always adding, dropping, substituting and reordering ideas as they come up with new ideas. Their ideas are always flowing, changing as they add on to and edit their work.