Disciplinary Content Knowledge

There is strong agreement in science teacher education of the importance of teachers' content knowledge for teaching (CKT), which includes their subject matter knowledge and their pedagogical content knowledge. However, there are limited instruments that can be easily administered and scored on a large scale to assess and study elementary science teachers' CKT. Such measures would support strategic monitoring of large groups of science teachers' CKT and the investigation of comparative questions about science teachers' CKT longitudinally across the professional continuum or across teacher education or professional development sites. To address this gap, this study focused on designing an automatically scorable summative assessment that can be used to measure preservice elementary teachers' (PSETs') CKT in one high-leverage science content area: matter and its interactions.

Research on teacher educators’ professional learning has gained increasing interest within science education. Curriculum materials have been suggested as a means of supporting teacher learning for several decades but have not yet been examined as a potential tool for supporting the learning of teacher educators. In this paper, we conceptualize a set of design heuristics to guide the development of educative curriculum materials for teacher educators.

Research on teacher educators’ professional learning has gained increasing interest within science education. Curriculum materials have been suggested as a means of supporting teacher learning for several decades but have not yet been examined as a potential tool for supporting the learning of teacher educators. In this paper, we conceptualize a set of design heuristics to guide the development of educative curriculum materials for teacher educators.

The InSTEP professional learning platform aims to support grades 6-12 teachers’ professional learning in teaching statistics and data science through a personalized online learning platform. While statistics and data analysis are included in standards for both mathematics and science, there are also many states across the country envisioning high school course pathways that include a heavier emphasis on statistics and even stand alone courses on data science. In this brief research report, we aim to share how we have designed supports for teachers to personalize their professional learning and results from a collective case study of 37 participants engaged in a field test of the platform in Fall 2022.

In this study, 82 middle and high school teachers engaged with the InSTEP online professional
learning platform to develop their expertise in teaching data science and statistics. We
investigated teachers’ engagement within the platform, aspects of the platform that were most
and least effective in building teachers’ expertise, and the extent to which teachers’ self-efficacy
changed.

In this article, we describe a professional learning community (PLC) for science teacher educators that supported changes in pedagogy through educative curriculum materials and vignette writing.

The authors are developing a model for rural science teacher professional development, building teacher expertise and collaboration and creating high-quality science lessons: technology-mediated lesson study (TMLS).

Examining teachers’ knowledge on a large scale involves addressing substantial measurement and logistical issues; thus, existing teacher knowledge assessments have mainly consisted of selected-response items because of their ease of scoring. Although open-ended responses could capture a more complex understanding of and provide further insights into teachers’ thinking, scoring these responses is expensive and time consuming, which limits their use in large-scale studies. In this study, we investigated whether a novel statistical approach, topic modeling, could be used to score teachers’ open-ended responses and if so, whether these scores would capture nuances of teachers’ understanding.

Despite the importance of developing elementary science teachers' content knowledge for teaching (CKT), there are limited assessments that have been designed to measure the full breadth of their CKT at scale. Our overall research project addressed this gap by developing an online assessment to measure elementary preservice teachers' CKT about matter and its interactions. This study, which was part of our larger project, reports on findings from one component of the item development process examining the construct validity of 118 different CKT about matter assessment items.

Bioinformatics—a rapidly developing discipline that integrates mathematical and computational techniques with biological knowledge for applications in medicine, the environment, and other important aspects of life—is an example of an emerging field that illustrates the need for a greater focus on STEM integration in K12 education. Studies on teaching bioinformatics in high school reveal difficulties that arise from a lack of curricular resources and teacher knowledge to effectively integrate disciplinary content. In this study, we investigated challenges teachers experienced in teaching a problem-based bioinformatics unit after participating in professional development (PD) activities that were carefully constructed using research-based effective PD characteristics.