Reports that complex abstractions may be easily acquired by persons of less than 75 IQ if the method of presentation of the abstractions ensures maximum visibility of relevant details. (FL)

The purpose of this study was to evaluate a practical procedure for determining the optimum sequencing of pictorial classification tasks in science using mean difficulty indices generated by a standard sample of grade two students. Acquisition of such skills can affect the learner's performance on subsequent material and the teacher's efforts in…

Questions investigated in this study deal with relationships between map problem difficulty and students' acquired level of intellectual development, the effects of sequential mastery of map concepts, and the optimum age to introduce certain map concepts in the geography curriculum. In the main investigation, which covered varied selected,…

Educational research on the social studies since the 1960's, indicating that many changes have occurred yet implying that there is still a further need for research and improvement, is summarized in this booklet. Because the vast amount of research on social studies makes it impractical to report a great deal of it, many of the findings reported…