This study explores teachers' use of Spanish in sixth-grade bilingual science classrooms at an urban middle school in Texas. We used a case study approach to study how two Spanish-English bilingual teachers utilized Spanish during instruction in a unit on space exploration and their beliefs on Spanish use in English-dominant science classrooms.…

The purpose of this study is to introduce a science module that was designed based on the ASSURE model and to present its implementation process. The study was conducted with the participation of 21 students attending a private school during the 2020-2021 academic year. The instructional plan focused on the concept of "Relationship between…

The study investigated how explicit instruction of argumentation-in the context of socioscientific issues (SSI)- and explicit instruction of NOS, compared with explicit instruction of argumentation only, can develop grade 10 students' argumentation skills and NOS conceptions. Participants were 36 grade 10 students enrolled in two sections that…

Despite the need for public understanding about groundwater resources, groundwater is among those topics that instructors most struggle to teach at pre-college and college levels. Although constructivist theories suggest student-held conceptions can be used as teaching tools for active learning, there remains a question about how to draw out and…

Research suggests that translanguaging can be transformative for teaching and learning by making students' diverse linguistic resources a meaningful part of classroom discourse. Building on this study, researchers have explored how translanguaging practices can support learning in STEM (science, technology, engineering, and mathematics), primarily…

English connects all areas of science around the world. Productive and receptive English-language skills are thus a crucial tool that schools must provide their students with in order to prepare them for higher education and professional life. The introduction of bilingual instruction of subject matter, often referred to as Content and Language…

In this paper, we present a teaching module about stellar structure, functioning and evolution. Drawing from literature in astronomy education, we designed the activities around three key ideas: spectral analysis, mechanical and thermal equilibrium, energy and nuclear reactions. The module is divided into four phases, in which the key ideas for…

This work presents a proposal for the teaching-learning of the concept map technique applied to the Natural Sciences course in the second year of Compulsory Secondary Education (ESO, according to its initials in Spanish). Two sessions have been designed, one of which is an instructor-led session to learn the technique and another is a session in…

Engineering has become an important subject in the Next Generation Science Standards (NGSS), which have raised engineering design to the same level as scientific inquiry when teaching science disciplines at all levels. Therefore, preservice elementary teachers (PSTs) need to know how to integrate the engineering design process (EDP) into their…

We present quantitative results for the doctoral thesis of the first-named author of this article. The objective was to recommend and test a teaching proposal for core knowledge of evolutionary biology in secondary education. The focus of the study is "Problem cores in teaching". The "Weaving evolutionary thinking" teaching…

Despite a general consensus on the educational effectiveness of inquiry-based instruction, the enacted type of inquiry in science classrooms remains debatable in many countries including Saudi Arabia. This study compared guided-inquiry based teachers' professional development to teacher-directed approach in supporting Saudi students to understand…

A simple model of scientific inquiry was developed using non-technical language. One group of elementary school teachers was introduced to the model during a two-week summer institute where the model was used in conjunction with activity-based approaches to teaching. Participants applied the model in planning and facilitating activities for…