Knowing how science teachers develop their professional knowledge has been a challenge. One potential way to determine the professional knowledge of teachers is through videos. In the study described here, the authors recruited 60 elementary and secondary science teachers, showed them one of two 10-min videos, and recorded and analyzed their…

In a mathematics course for prospective elementary teachers, we strove to model standards-based pedagogy. However, an end-of-class reflection revealed the prospective teachers were considering incorporating standards-based strategies in their future classrooms in ways different from our intent. Thus, we drew upon the framework presented by Simon,…

Describes three major difficulties plaguing most discovery-learning teaching systems and presents a theoretical operational approach for offsetting these difficulties. (SL)

This study's main purpose was to determine the effects a mastery teaching strategy would have on pupil achievement. A total of 21 teachers participated; results are reported for the subgroup of third and fourth grade teachers (n=5). Achievement of pupils favored the mastery group for each of the teachers. (DT)

The ability of 616 students (grades 4-9) to apply the ratio concept in a simple measurement and prediction task was investigated. Responses were classified into 11 categories. Results showed those not using proportional reasoning had access to alternate procedures that reflected individual cognitive style rather than Piagetian developmental level.…

Advance organizers may fail to promote learning even though they are approximately related to the main learning experience and internally meaningful and logical. If they are to optimize the likelihood that new materials will be readily and properly subsumed, they must also be constructed to conform to the cognitive preparedness and scholastic…

A presentation of learning experiences involving materials is recommended which reflects the sequence of the developmental stages. This sequence is concrete, concrete-abstract, pictorial-abstract, and abstract. Instructional examples at each level are presented. (JP)

The investigation was intended to assess the relationships of three variables at three distinctly different grade levels. The objective was to understand better the roles that each construct plays in relation to mathematics attitudes. Results did not establish causality, but it is felt implications for causality are clear. (MP)

Eighty tenth-graders studied a two-day unit on quadratic inequalities presented in one of four programmed-booklet forms: analytic treatment with advance organizer, analytic treatment plus introductory overview, graphical treatment with advance organizer and graphical treatment with introductory overview. No differences were found between groups on…

Reviews two aspects of research related to audio-tutorial instructional methods. First, the learning theory of David P. Ausebel is summarized and applied to instructional procedures. Secondly, learning time for attainment of concept and knowledge levels is discussed. Concludes that studies are needed on designs based on Ausebel's theory,…