1.   Aims are necessary starting points, but before the teacher can begin to provide learning experiences further refinement is necessary.

2.   Everyone in the class started laughing and the teacher began searching for the culprit.

3.   Once the children were quiet, the teacher began.

4.   The teacher began handing out the test papers.

5.   Many teachers begin to find it difficult to contain their drama to occasional one-off sessions in the hall.

6.   Already, some teachers are beginning to receive pink lay-off slips for the following school year because the funding has not been agreed on.

7.   And teachers are beginning to ask questions to make students think more critically about the presidency.

8.   And teachers are beginning to receive warning slips that their jobs may be in question next fall.

9.   As teachers began to lecture about AIDS, they quickly realized that some of the students had already seen the effects.

10.   Backed by neurological research, physical education teachers have begun asserting that movement aids learning and that a gym is also a classroom.