One of the core practices of science is constructing scientific explanations. However, numerous studies have shown that constructing scientific explanations poses significant challenges to students. Proper assessment of scientific explanations is costly and time-consuming, and teachers often do not have a clear definition of the educational goals…

Science as an enterprise has been and continues to be exclusionary, perpetuating inequities among whose voice is heard as well as what/whose knowledge is recognized as valid. Women, people of color, and persons with disabilities are still vastly outnumbered in science and engineering by their White, male counterparts. These types of imbalances…

Students with the most significant cognitive disabilities (SCD) are the 1% of the total student population who have a disability or multiple disabilities that significantly impact intellectual functioning and adaptive behaviors and who require individualized instruction and substantial supports. Historically, these students have received little…

Based on quantitative survey data collected from an inquiry-based general chemistry laboratory course, the current study used marginal models to evaluate changes in students' teamwork and problem-solving skills, attitudes to teamwork, and willingness to explore new issues before and after the course. The results suggest that introductory-level…

There were no differences in critical thinking, understanding of science, or achievement outcomes between students using an ISCS type instructional unit and those given group instruction over the same content. (AL)

Reports results of the meta-analysis of 130 research studies on effects of instructional systems used in science teaching. Studies coded gave rise to 341 effect sizes. Systems examined included audio-tutorial, computer-linked, individualized, and media-based instructional systems, personalized system of instruction, mastery learning, self-directed…

Examines regression analysis of 12 aptitude measures and an achievement criterion measure in a study of 285 ninth-grade science students who were randomly assigned to one of four individualized programs: teacher-directed treatment, media treatment, reading treatment, and programmed instruction treatment. (MLH)

Ascertained were the effects of an individualized instruction method, audiotutorial (AT), on the cognitive achievement in biology of prospective general primary grade teachers. Used as a control was a conventional lecture-laboratory format of instruction. Results indicate that the prospective teachers appeared to gain more from AT instruction than…

Determined whether small groups would stimulate creativity more than individualized learning environments for fifth- and sixth-grade students (N=111). Results indicated that small groups were more creative with electrical circuits and that this grouping format should be used in elementary classes. (Author/DH)

Investigated was the adequacy of a teaching-learning model for improving the level of achievement and attitudes of culturally deprived children in heterogeneous classes, while offering adequate learning opportunity to those who were not deprived. A seventh grade biology course on aquatic zoo ecology was developed for this model. (Author/HM)

Investigated the appropriateness of audiotutorial instruction for a wide spectrum of students. Questions whether there are significant relationships between personal traits of variables of achievement and success, whether there is a different set of personal traits for high and low achievers, and how well a battery makes ex post facto predictions.…

Compared conventional biology instruction to personalized system of instruction (PSI) and investigated relationship between achievement and selected variables (age, sex, family income/size, grade point average, motivational factors, treatment group, and California Achievement Test scores) of college students (N=80). Results, among others, indicate…

This study focuses on the transmission stage of curriculum implementation, specifically at the interaction level of curriculum developer and teacher. Level of agreement regarding objectives and priorities between evaluators, teachers, and developers was determined for a unit on "colors" developed for primary school children and partially…

Compared effectiveness of teacher-demonstration and self-paced modes of teaching concepts and problem-solving skills in college chemistry. Results showed the self-paced mode significantly more effective for teaching concepts and problem-solving skills. Results of an attitude test also showed that most students (N=60) preferred the self-paced…

Examines a number of factors that might influence performance in a college laboratory chemistry course. Compares the achievement and time for students doing a simulated or a laboratory experiment. Tries to identify differences in performance for students of different aptitude and possible interaction between types of experiment and student…