Problem-based learning (PBL) is a teaching/learning strategy through which students learn course content by solving real-world problems associated with the course material. Although the benefits of PBL have been amply demonstrated in the medical field and other selected subject areas, few studies have examined PBL's potential contributions in…

The integration of assessment, learning, and instruction are discussed, focusing on the importance of students' prior knowledge. A literature review and analysis of 128 studies provide support for the assertion that assessment has an important impact on instruction and learning. Positive effects were found for progress assessment. (SLD)

Major issues in models of student learning (Carroll's, Bloom's, and Glaser's models) are discussed, and a model that retains the salient features of these models (time, prior learning, and learning processes) is outlined. The final model also addresses other facets having unique effects on achievement and interactions among facets. (TJH)

Meta-analytic techniques tested the effect on learning of the interaction of prior achievement with instructional support. This review of nine studies indicates that differences in prior achievement levels can be reduced through instructional treatment. Results support the use of meta-analyses for other investigations of aptitude-treatment…