The Effects of Selected Experiences on the Ability of EMR Children to Conserve and Use the Transitive Property of Three Matching Relations: A Feasibility Study.

This study examined the effects of a specified set of activities on the ability of educable mentally retarded (EMR) children to use the transitive property and conserve the three relations "same number as,""more than," and "fewer than." Thirteen EMR students, aged 12 to 15, were taught eleven lessons on establishing and conserving these relations, and on the use of the transitive property. Three tests were given as pretests and readministered later as posttests and retention tests. Analyses of numbers reaching criterion showed that significant improvement occurred during the instructional period and was maintained thereafter. (MM)