The following guidelines underlie many of the more specific criteria for evaluation which will be found later in this book and act as useful guides in approaching any materials evaluation exercise.

• 下列的指导方针位于许多较多的特定标准将会稍后被在接近任何的材料评估练习方面在作为有用的引导者的这一本书和行为中发现的评估之下。