Discusses the frequent misconception displayed by students that chromosome structure is a function of chromosome number or ploidy. Provides detailed analyses of the evidence concerning the prevalence of this ploidy/structure misconception among students of introductory genetics and the potential sources for inaccurate communication that it can…

A University of Limburg (Netherlands) study investigated influence of health sciences tutors' subject-matter expertise on the achievement of 1,800 students participating in tutorial groups with leaders having varying levels of subject expertise. Results indicated a positive influence of tutor subject expertise, particularly in interaction with…

Reports a study that examined the effects of conceptual orienting questions and differences in prior knowledge on factual learning and problem solving in biology. Tenth graders who participated in control or orienting questions groups completed posttests. Results indicated that question groups outscored the control group. (SM)

Reports an ethnographic study of two multicultural seventh grade classes to explore the role and value of graphic representation of knowledge structures in English-as-a-Second-Language student learning, based on a specific definition and categorization of knowledge structures. (28 references) (GLR)

Examines comprehension of students provided with relevant background knowledge and then tested on two versions of a text. Finds that students who read the revised text recalled significantly more material and answered more questions correctly than students who read the original text. Discusses the importance of the teacher's role in mediating…

Discussion of user-friendly computer systems focuses on the use of learners' mental models to help in the design of interactive learning systems. Topics addressed include interactivity; human factors research; human-computer interface issues; individual differences, including learning styles and prior experience; cognitive load; measuring mental…

Describes a study that was conducted to examine the receptivity of faculty at two-year and four-year colleges and universities to distance education. Attitudes toward distance education, the influence of previous experience with distance education and with educational media is examined, and barriers to distance education are discussed. (Contains…

Relationships between three approaches to learning (surface, deep, and achieving), prior knowledge of subject area, and performance on a multiple-choice test following a unit in basic psychology were investigated with 105 college freshmen. Approaches to learning were unrelated to test performance. Prior knowledge did not relate to a deep approach…

Reviews previous research to compare the instructional effects of multiple-try feedback (MTF) forms to single-try feedback forms and no feedback in both traditional and in computer-based instruction. Interaction between students' prior knowledge and the number of feedback trials is examined, and future MTF research is suggested. (Contains 59…

This study found no significant relations between junior high school students' (n=50) prior alternative frameworks on energy and their cognitive levels of operation. Significant differences in learning outcomes were achieved by students (n=29) who had higher cognitive level scores. The extent to which students succeeded in learning the energy…

Assessment of career interests in 80 undergraduate students enrolled in a course and practicum on the psychology of mental retardation found no significant changes in career interest from pretest to posttest. Students with prior exposure to individuals with mental retardation (especially as volunteers) reported high levels of career interest.…

A study of 82 Canadian college freshmen investigated working memory, verbal ability, and prior knowledge as predictors of quality of students' lecture notes, lecture summaries, and content recall. Students with higher working memory benefitted more from listening to the lecture than from listening and taking notes. Quality of summaries predicted…

Adult educators are challenged to maintain their commitment to social change as their work is co-opted by the training reform/lifelong learning agenda. Using ongoing reflection on practice, adult educators can challenge that agenda's dominant conceptions of recognition of prior learning. (SK)

Describes a study of college students that was conducted to examine the effectiveness of integrating different computerized visual-presentation strategies in learning different contents; the effect of identical presentation strategies on students possessing different levels of prior knowledge; and whether the use of different visual strategies…

Randomly selected high school students (n=13) who studied an ecology unit were interviewed, and narrative data analyzed for changes in knowledge schema. Data support the current theory that the amount and quality of prior knowledge substantially influence gains in new knowledge and are closely linked to a capacity to apply higher-order cognitive…