In a Fourth Grade Classroom a Teacher Notices Some of Her

In a fourth grade classroom a teacher notices some of her students don't understand how to apply a strategy to their reading. She models the strategy again and demonstrates how readers use it with text. She also shares her thinking aloud with the group of students and provides opportunities for practice. This teacher knows that

A) effective teachers need to allow time for practice.
B) effective teachers provide explicit strategy instruction when needed.
C) effective teachers patiently wait until everyone masters a concept before moving on.
D) effective teachers reteach to the entire classroom when a small group doesn't grasp the concept.