Digital technologies have the potential to revolutionize education by enhancing quality, fairness, and efficiency. However, equitable access to these technologies remains a challenge. ILSAs (international large-scale assessments) have shown that the relationship between digital use and performance varies across countries and over time. To fully…

Reviews research related to the question of whether or not science class sizes should be reduced. Research is grouped into two categories: (1) empirical research on achievement; and (2) research on teaching methodology. Discusses the Robert Slavin/Harris Cooper debate, when results defy common sense, and the Tennessee-based…

The purpose for conducting this evaluation was to gather and report information on the degree to which the K-6 Science program for San Diego (California) City School children was meeting the needs for which it was designed. The goals of the evaluation include the following: (1) to describe the K-6 science program as it currently exists in…

This study explored questions about the effect of lesson structure and cognitive development on science achievement of 42 students in grades four and five in British Columbia. Increased lesson structure did not significantly increase achievement, and interaction effects were generally nonsignificant. Conservation ability significantly affected…

Presented are the results of an analysis of the cognitive stages of tenth-grade pupils using a six-week unit on the respiratory system. The research design, instruments, and data analysis are discussed. A variety of cognitive levels was found and may be related to learning outcomes. (CW)

Presents the four program goals for biology set forth in the National Science Teacher Association's "A Focus on Excellence: Biology Revisited" to (1) address biosphere, human society, and individual needs; (2) encourage students to experience, understand, and appreciate of natural systems; (3) apply the basic concept of the biosphere; and (4)…

More than half of the high school students in the United States are in general and vocational programs. Students who complete vocational programs, however, score significantly lower on science achievement tests than do students in the academic curriculum nationwide. As work in business and industry becomes more technologically based, the…

The ue of hands-on models in teaching protein synthesis, in comparison to traditional expository methods, has been shown to improve the content achievement of biology students. The purpose of this study was to evaluate a set of models and the accompanying laboratory exercises in terms of content achievement and attitude toward biology and…

Examines teachers' differing uses of student-gathered data during science investigations. The results show that student language use and concept understanding differed between two different instructional approaches. Suggestions are provided for using student-gathered data in teaching elementary school science. (LZ)

Proposes methods by which laboratory practical exams may be structured to assess outcomes from laboratory instruction. Presents eight general considerations for writing and using practical exams. Describes four example laboratory exams involving a box camera, circuit boxes, floating objects, and light. (MDH)

Presents research data that demonstrates current disparities in science proficiency among subgroups defined by gender and race. Discusses differences in achievement, science experiences out of school, and academic support. Presents seven guidelines for structuring science activities that motivate and respond to the interests of all students. (19…

Black students, other minorities and white students can show significant increases in achievement in biology by using a cooperative learning model. Concentrating on cooperating with group members toward a common goal is the ingredient that makes this cooperative learning model work. This study was designed to investigate the effects of cooperative…

Previous research concerning the cognitive abilities of high school students has indicated that a substantial number of students enrolled in secondary science courses do not conceptualize at the formal-operational level. Further, results indicate that achievement levels in chemistry coursework are significantly affected by, not only cognitive…

This paper, which considers effective science teaching and learning for limited English proficient (LEP) students in U.S. schools, is based on the assumption that science and English language can be effectively learned together without excessive emphasis on students' native language, although teachers and aides who have knowledge of LEP students'…

Reports on the impact of an introductory biology course sequence that incorporated experience-based, group learning. Achievement results indicate that students were not disadvantaged by this new approach and, in fact, displayed a superior grasp of group-work, open lab utilization, and creative problem solutions. Attitudes regarding anxiety over…