Recent K-12 science reforms necessitate a shift in curriculum and instruction to support coherence from the students' perspective. This coherence emerges when students see their science work as addressing and making progress on their questions and problems. Storyline curricular units afford student coherence, but teachers need support to craft…

In this study, an innovative scientific modeling course on concentration cells is designed: First, the demonstrations revealed examples of three different concentration cells. Then, scientific models visualizing the process and principle of cell reactions at the level of microparticulates were introduced to students. Finally, three new…

[This paper is part of the Focused Collection on Curriculum Development: Theory into Design.] Although curriculum design has a long tradition in physics education research (PER), it is often criticized for unclear or inconsistent methodologies. One reason is that the theory-into-practice aspect frequently remains blurred. Only a few curriculum…

In this study, a Scientific Communication Curriculum (SCC) was designed for middle school students and teachers to equip them with scientific communication (SC) skills, and the skills included in the SCC were integrated into the middle school lessons. Within the framework of the Curriculum Design Research (CDR), designing the Scientific…

This study addresses the inadequacies of the traditional ninth-grade science curriculum at The Charter School of Wilmington (CSW) and proposes a focused initiative to enhance the curriculum's relevance and effectiveness. The current Integrated Science & Research curriculum lacks socioscientific inquiry, neglecting to incorporate social issues…

This empirical study investigates the main features of curricula and contexts that favor or hinder the process of transfer of a teaching-learning sequence (TLS) from the designers' original situation to a host one. The specific research questions addressed were (RQ1) what were the changes made during the process of transfer in the new context?…

Research suggests that it is challenging for elementary students to develop conceptual understanding of trait variation, inheritance of traits, and life cycles. In this study, we report on an effort to promote elementary students' learning of hereditary-related concepts through scientific modelling, which affords opportunities for elementary…

A randomized trial study, conducted over two school years in 18 high schools in Washington, finds that "An Inquiry Approach," a three-year, educative curriculum for high school science, has a positive impact on student achievement, teacher practice, and fidelity of implementation of the curriculum when the curriculum is paired with…

The research reported on here is part of a larger study exploring the alignment of the intended, implemented and attained curriculum with regard to practical work in the Zimbabwean A-level Biology curriculum. In this paper we focus on the alignment between the intended and implemented A-Level Biology curriculum through the lens of teachers'…

The "Next Generation Science Standards" (NGSS) challenges science teachers to think beyond specific content standards when considering how to design and implement curriculum. This lesson, "Windmills by Design," is an insightful lesson in how science teachers can create and implement a cross-cutting lesson to teach the concepts…

The first author re-entered the middle grades classroom to teach a new National Science Foundation (NSF) physical science curriculum that was designed to foster conceptual change through a scientific approach. The curriculum design met the need and call for reform in science education through its focus on inquiry, evidence-based reasoning, peer…

This study investigated the design, enactment, and impact of an undergraduate, inquiry-based astronomy laboratory learning environment. The professor, Richard, adopted laboratory materials from the Center for Astronomy and Physics Education Research [CAPER] which were described by the group as inquiry-based. Students worked through these…

This study focuses on the experience of designing and implementing an action research-based curriculum in a secondary science classroom. By systematically examining ourselves and our practices, we brought to light beliefs and values that were realized through this process, came to a deeper understanding of our own learning, and developed new…

The acquisition of scientific knowledge is fraught with difficulties and challenges for the learner. The very nature of some scientific domains contributes to the learning difficulties students' experience. Phenomena in these domains are composed of multiple organization levels featuring complicated interactions within and across these levels.…

This study introduces "teachers' collaboration" as an approach to teachers' professional development geared at enhancing science and mathematics teaching in Tanzania secondary schools. Teachers' professional development through teachers' collaboration has been reported to be effective for the improvement of schools' performance and…