Removing the Blinders: A Shopper's Guide To Instructional Materials

Abstract

What factors does a consumer need to consider, faced with a confusing diversity of instructional materials which are often promoted as panaceas for learning problems? Do producers’ claims of effectiveness provide adequate information by which to judge a material in comparison with other products? The authors propose several important guidelines for selecting math manipulative devices, in light of individual developmental levels, handicapping conditions, and specific instructional objectives. Specific factors are discussed under broader considerations of sensory dimensions, structure, cost, and content.