Is the material colorful? Pupils are attracted by bright and dark colors. And if so, is the choice of colors life-like and harmonious. Does the color facilitate understanding?
Can the material stand several uses? Can it be used over and over again.
Is the material worth its costs? Or can a cheaper material in terms of time spent in preparing it and in terms of the cash value be used?
Easy to Handle
Is the material light and easy to manipulate. Is it easy to put up and then and store for future use.
Does the material possess an element of newness? Can it arouse the curiosity and a sense of discovery in the learners?