1 Biologya branch of knowledge or study dealing with a body of facts or truths systematically arranged and showing the operation of general laws:the mathematical sciences. 2  Biologysystematic knowledge of the physical or material world gained through observation and experimentation.
Bracha Alpert has identified three different patterns of classroom discourse: (1) silent (the teacher talks almost all the time and asks only an occasional question),(2) controlled (as in the excerpt above), and (3) active (the teacher facilitates while the students talk primarily to each other).
The dominant discourses in our society powerfully influence what gets storied and how it gets storied. A discourse is a system of words, actions, rules, and beliefs that share common values. Particular discourses sustain particular worldviews. We might even think of a discourse as a worldview in action.