1.   The computer has become an invaluable teaching tool.

2.   And the pop-up anatomy lessons are a high-tech teaching tool, he said.

3.   As might be expected, there are sites that have been created as teaching tools for children.

4.   At mall shops like Exploratorium and Rand McNally, globes are presented as teaching tools.

5.   Besides promoting arts education, the night is to encourage teachers to use theater as a teaching tool.

6.   Blame can be an effective teaching tool, but overusing it can quickly diminish its effectiveness.

7.   A patent for using a book as a teaching tool?

8.   But apples mean much more to teachers, who use the fruit as teaching tools in math, history and more.

9.   But Calhoun was already coaching for next season when he mentioned the defeat as a teaching tool, not another page in the media guide.

10.   But he eventually discovered its uses as a teaching tool.