A series of studies conducted to identify the factors that block and unblock problem solving is described. Through the construction of an isomorph of the classic "water jar" problems developed by A. S. Luchins (1942) as a dynamic graphic micro-world, several factors involved in producing blocked states were identified. Subjects included…

This study investigates the pattern of teacher questioning regarding three elements: sequence, student respondent, and cognitive process. The rationale for this type of teaching rests on the claims for teaching students the process of critical (reflective) thinking. In this type of teaching it is necessary to have data before the students. Only…

This study examines infant temperament (inhibited and uninhibited styles) as a predictor of behavior in the kindergarten classroom. Thirty-one kindergarten children were observed in their classrooms for approximately 1.5 hours on each of four occasions between September and January. Fourteen children (8 girls, 6 boys) had been classified as high…

This exploratory study focused on the interactional dimensions of kith and kin care, and involved childcare providers living in low-income urban communities in Los Angeles (80% African American; 20% Latina). The focus of the present study was to examine: 1) The range and variability of each index of quality--providers' professional development…