This document discusses the role of testing in teaching. It suggests that testing has historically been and remains an integral part of the teaching process, whether through systematic teaching and testing or discovery-based learning. It notes that test results can be useful for teachers and administrators to share information with boards, parents, and the public, and to measure the effectiveness of instruction and learning. The document indicates that teachers generally have a more supportive attitude toward testing than portrayed in some literature, and that their attitude depends partly on their experience with and knowledge of testing.