With the increasing interest in STEM (science, technology, engineering and maths) curricula comes the need for evidence backing these programmes. One such science programme is The BSCS Inquiry Approach, a comprehensive secondary school science approach based on three key concepts: constructivism, coherence and cohesiveness. The materials are built around the 5E process (engage, explore, explain, elaborate and evaluate). Teaching focuses on evaluating pupils’ current understanding and using inquiry methods to move them to higher understandings. Each of the science disciplines (physical science, life science, earth science, and science and society) is composed of four chapters that repeat common themes, which advance over a three-year period. Designing and carrying out experiments in small groups is important in all topics. Teachers receive seven days of professional development each year, including a three-day summer institute and four one-day sessions, enabling sharing of experiences and introducing new content over time.
To determine the effects of The BSCS Inquiry Approach on pupil achievement, BSCS conducted a two-year cluster-randomised study of the intervention that compared pupils in grades 10–11 (Years 11–12) in nine experimental (n=1,509 pupils) and nine control secondary schools (n=1,543 pupils) in Washington State in the US. A total of 45% of pupils qualified for free or reduced-price lunches. At the end of two years, the BSCS pupils scored higher than controls (effect size=+0.09, p<.05) on the Washington State Science Assessments.
Source: An efficacy trial of research-based curriculum materials with curriculum-based professional development, Biological Sciences Curriculum Study, BSCS