The purpose of this study was to examine elementary teachers' science teaching concerns after participating in a two-year extensive and sustained science professional development intervention. The intervention consisted of two types of teacher professional development across two years including: (a) summer institutes (60 hours across two years)…

Over the past 20 years there have been many changes to the primary and secondary educational system that have impacted students, teachers, and post-secondary institutions across the United States of America. One of the most important is the large number of standardized tests students are required to take to show adequate performance in school.…

Problem-based learning can enhance reasoning and concept development among undergraduate college students by presenting content within authentic contexts. However, large lecture sections present problems and barriers to implementing PBL. This article discusses approaches used by the author to infuse PBL into large biology lecture sections, and…

The commercial simulator Aspen Chromatography was employed to study and optimize an important new industrial separation process, weak partitioning chromatography. This case study on antibody purification was implemented in a chromatographic separations course. Parametric simulations were performed to investigate the effect of operating parameters…

Contextual Teaching and Learning (CTL) integrates inquiry, problem- and project-based learning, cooperative learning, and authentic assessment. Case studies were carried out on 21 teachers who used CTL to teach science in elementary schools to diverse groups of children. The findings indicated that the conditions that fostered the implementation…

Case-based approaches are effective for teaching and learning science, encouraging student-directed collaborative learning and active engagement. This paper looks at using cases in science teaching and learning at the secondary and undergraduate levels and the impact these approaches have on teachers, students, curricula, and classroom…

Describes the process of problem-based learning (PBL), discusses the history of the movement, and analyzes the advantages and disadvantages of PBL. Explains the advantages of PBL in developing desirable attributes in biochemistry graduates which include being able to generalize, being able to interpret data, and possessing knowledge of relevant…

A medical school course integrating basic science and clinical issues consists of 13 problem-based learning exercises, each exploring a clinical case. Using networked terminals in specially-designed small-group rooms, students progress through cases with a faculty facilitator. Users cite access to better images, accountability, and juxtaposition…

Compares models of the classroom dynamics for a traditional laboratory setting and a problem-solving-centered environment, both at the eighth grade science level. Descriptive data indicate no differences in the models, whereas path analyses suggest that, in the problem-solving model, student behaviors significantly correlate to lesson structure,…

In its use of complex, real-world problems to introduce concepts and motivate learning in an active and cooperative learning environment, problem-based learning is a powerful alternative to the passive lecture in introductory college science. Use of technology and multimedia instruction, focus on large classes, and use of interdisciplinary…