Show 28 it 5 Is 6 Is it appropriate to the age and grade levels of the pupils? 7 Is it artistic in elements composition lines color finish? 8 Is it a good print clear and distinct? Free from ishes or soiling? 9 of practical size? Large enough to show details and small enough to be easily handled and used?H suggestive of reality? mparison? Continuity? Is Contrast? Co- Action? and blem- it i Selection and evaluation of recordings One evaluation of re- - cordings can be obtained through a census from reactions of students and i is observations teachers in classroom situations made by a suggested evaluation sheet given by Kinder Purchasing An 1 Following 9 important factor in establishing a basis for the purchase of materials is the rate of obsolescence due to tech-nological advances or the more effective treatment of subject matter In the case of materials with a useful should be purchased when the ll-McKow- Harry n Instruction Hew linder Hew York C York Book Co McGraw-H- ill Audio-Visu- Co seven years a copy rental per year exceeds and Roberts Alvin James S American Book life of Aids Audio-Visu- al 1949 to one-seve- nth p to 147 Materials and Techniques al 1950 B 13 p 590 Yearbook Materials of Instruction Forty-Eigh- th Part I national Society for the Study of Education Chicago The University of Chicago Press 1949 P 212 Audio-Visu- al |