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).
Therefore, a discourse is composed of semiotic sequences (relations among signs that communicate meaning) between and among objects, subjects, and statements. The term discursive formation (French: formation discursive) conceptually describes the regular communications (written and spoken) that produce such discourses, such as informal conversations.