Most chemistry instruction and assessment lie in the symbolic domain of Johnstone's representational levels, despite years of chemistry education researchers calling for increased emphasis to be placed on the molecular or particulate level of chemistry. Without a deep understanding of the particulate nature of matter and molecular-level…

The performance of any economy is based on scientific knowledge and technological innovation. Consequently, a highly motivated workforce with skills in science and engineering is key to any prosperous economy. Science education has a critical role in providing scientific literacy to students, as well as in training young people to choose careers…

Adopting new instructional materials is an important way to support reform in science education, but implementation can be challenging and complex. Therefore, we conducted a contrasting case study of two middle schools implementing new curricular materials. We conducted semi-structured interviews with teachers and leaders and collected…

Seventeen years following the introduction and subsequent adoption of the Competency-Based Curriculum (CBC) in Tanzanian secondary schools, teachers continue to grapple with its implementation. This research, guided by the curriculum framework, aims to uncover the underlying issues hindering the seamless execution of CBC and explore the various…

A new generation of science curriculum materials is being developed and made widely available across K-12. These materials, along with their associated professional learning, are expected to play a pivotal role in transforming science instruction to meet the vision of A Framework for K-12 Science Education and the performance expectations of the…

Previous studies have demonstrated that the socio-scientific issue approach (SIA) and design thinking (DT) can inspire creative thinking in science learning. However, the way in which the integration of SIA and DT fosters creative thinking in entrepreneurship (CTE) among rural secondary school students during science learning remains unclear. To…

The inquiry-based approach is a teaching strategy that facilitates students learning scientific concepts and about the nature of chemistry through experimental research, allowing them to participate in chemistry classes as researchers. The methodology employed in chemistry learning in Brazil is based on the traditional teaching approach, and…

Background: In the midst of digital transformation, schools are transforming their classrooms as they prepare students for a world increasingly automated by new technologies, including artificial intelligence (AI). During curricular implementation, it has not made sense to teachers to teach AI as a stand-alone subject as it is not a traditional…

The adoption of the Next Generation Science Standards (NGSS) requires many teachers to drastically change their classroom instruction. Curricular materials offer a tool to support this transition, but there are questions about the degree to which available curricula truly reflect the shifts required by the NGSS. This study proposes a framework of…

Teaching with inquiry-based learning (IBL) can be used to increase high school students' science proficiency levels. Teachers must also be equipped and prepared to teach inquiry-based learning concepts. Therefore, this study aimed to evaluate how prolonged professional development (PD) about IBL impacts science and agriscience teachers' intent to…

"Citizen science" popularly refers to a participatory approach in which lay persons voluntarily contribute data toward scientific enterprise. Although citizen science may provide unique opportunities for pre-college students to engage in data-intensive science practices, little is known about whether or how citizen science interacts with…

This dissertation is an extended prescription for the inclusion of social justice in high school biology (HSB) curricula. Chapter 1 is context: a review of social injustice (mainly racism) in the US, and the specious scientific justifications for it. Chapter 2 explores how three veteran teachers introduce social justice in HSB classes. A…

Culturally Relevant Education (CRE) focuses on the design of curricular materials that strengthen students' cultural identities while teaching classroom content and science practices. While examples of CRE in science continue to grow, the identities and cultures of the designers are often different from those of the students and communities in…

Recent policies and programs in science education underscore a need to address "opportunity gaps" for students who are parts of minoritized social, cultural, or racial/ethnic groups. In order to implement professional learning for teachers to assist them in effectively supporting all students, it is critical to understand the classroom…

In a historical moment in which Artificial Intelligence and machine learning have become within everyone's reach, science education needs to find new ways to foster "AI literacy." Since the AI revolution is not only a matter of having introduced extremely performant tools but has been determining a radical change in how we conceive and…