Students volunteered to answer the teacher's questions. Students say their opinions freely in class. Teachers ask students to express their opinions. Students speak only when the teacher calls on them. Students tell the teacher in class when they don't understand.
Students listen quietly when the teacher talks.
Students listen quietly when classmates talk. Students speak loud enough for the whole class to hear. Students consult with classmates before answering teacher. Students are afraid to make mistakes. Teachers encourage students to risk making mistakes.