Concludes that the role of the teacher as researcher in children's development of thinking and socialization through play is multi-dimensional. The initial function is the internal analysis of children's thinking and interaction within a variety of settings. (Author)

Sleep patterns of elderly subjects (N=12) differed from young adult levels. When sleep variables were compared with individual changes in intellectual function measured across the seventh through 10th decades of life, a positive correlation was found between time in REM sleep and several longitudinal measures of mental functioning. (Author)

American thought has contained a strong metaphysical bias favoring a realist interpretation of the world, and this has led to the assumption that facts possess ontological status, however, facts are segments of human experience and students must acquire conceptual tools for extracting factual data from experience. (JD)

This paper reports on a portion of a 14-year study of the mathematical thinking of a cohort group of students that was based on an identifiable perspective on how mathematical ideas are built. Three videotape episodes are presented so that groups of students working together can be viewed at three points in time: as fourth graders (ages 9-10) and…

Discusses a study of reading comprehension of fourth grade students by an instrument constructed by the investigator and based upon Piaget's developmental construct of intelligence. (TO)

The study investigated the communicative effectiveness of word order in preschoolers' comprehension of meaning using simple questions and commands in an at-home play context. (ST)

A cross-sectional, stratified random sample of 1,891 male and female adolescents (age range from 12 years 6 months to 17 years 6 months) was tested in 1970 with the Grades 9-12 form of the Primary Mental Abilities test. (Editor)

The author maintains that IQ is largely heredity and rejects compensatory programs as failures, suggesting other interesting avenues to close present social gaps. (Editor)

An open classroom'' with an integrated day and inter-age grouping is not enough in and of itself...to assure continuity for each child....The role of the teacher is still crucial. (Authors)

Describes two experiments on conservation of weight and volume based on Piaget's experiments. These experiments showed that some college students were unable to operate at the formal operations level. (PS)

Presents the results of two Piagetian conservation tasks administered to high school students. It was found that not many were at the formal operations level. Similar evidence is presented for college students. Concludes that development of formal thought must be a focus of all teachers. (DF)