External representations such as diagrams often appear in teachers' repertoire of pedagogical tools to support students' conceptual learning and problem-solving activities. The study of diagrams and diagrammatic representations has received growing interest from diverse disciplines. Diagrams remain a central feature of science, technology,…

Use of modeling as a learning strategy in introductory science courses could serve to support the persistence of all students, including those who identify with a traditionally underrepresented ethnic minority (URM). If students find inherent value in working on modeling-type problems then this authentic practice would aid in transforming personal…

The quasi-experimental, two-group (treatment and comparison), pretest--posttest study of metacognition, epistemological beliefs, and science content achievement explored the effectiveness of argument-based inquiry (ABI) instruction as opposed to traditional teacher-directed lectures and structured activities. Participants included 60 eight-grade…

This study investigated the characteristics of high-quality mathematics teaching in China following the launch of a new standard curriculum. Data was gathered through video-recorded observations of lessons that won a national teaching contest. We identified and examined the characteristics of the instructional practices through six domains: (1)…

We present evidence of a secondary school teacher's Knowledge of Mathematics Teaching when she teaches linear equations in a word problem setting. We focus on analyzing the examples and mathematics support that she provides her students with during two classes. When faced with contingencies, she takes decisions whereby she adapts or creates…

Raising scientifically literate citizens has been the main concern of the science education community. Socioscientific issues (SSIs) provide a context to facilitate individuals to expand their epistemic understanding and develop scientific reasoning skills such as evidence-based argumentation and consensus building. In this qualitative research,…

It is important to cultivate dispositions of 21st-century skills (D21S: critical thinking, complex problem solving, creativity, communication, and collaboration) in project-based science, technology, engineering, and mathematics learning (STEM-PjBL). Previous research has seldom adopted the person-oriented approach to examine STEM-PjBL program…

The purpose of the study was to investigate the relationship between high school students' understandings of aspects about nature of science (NOS) and their argumentation skills, particularly whether informed conceptions of NOS contribute to better argumentation skills. Participants, a total of 125 Grade 10 students, responded to an open-ended…

This paper describes a randomized and controlled efficacy study conducted in high school biology classrooms across the USA. In this study, teachers implemented the use of Data Nuggets, activities designed to bring real research and data into the classroom. These materials can be embedded within the existing instructional modality of any given…

This cross-national study examined students' evaluation of strategies for solving linear equations, as well as the extent to which their evaluation criteria were related to their use of strategies and/or aligned with experts' views about which strategy is the best. A total of 792 middle school and high school students from Sweden, Finland, and…

A theoretical model describing young students' (Grade 3) arithmetic-algebraic structure sense was formulated and validated empirically (n = 130), hypothesizing that young students' arithmetic-algebraic structure sense consists of five distinct but correlated factors; structure in numerical equivalence and word-problem modeling, structure in…

Integrating the nature of science (NOS) into textbooks is one of the challenges in science curricula. This case study assessed the issue based on a sample of high school biology textbooks in Mainland China. We quantitatively compared changes in the extent, quality, and distribution of NOS representations between 2004 and 2019 editions. Three main…

Measurement estimation skills are relevant for our everyday life and should be addressed in the mathematics classroom. Although students' measurement estimation skills were examined in several empirical studies, a structure model to describe these skills is still missing. The current research aimed at analyzing the structure of length estimation…

In this study, we investigated mathematics teacher's noticing of students' thinking in the context of mathematical modeling activities (MEAs) related to statistics. One middle-school mathematics teacher participated in the study, which adopted a case study design. Data were collected through interviews with the teacher based on video recordings of…

This study explores the effects of gendered inquiry-based learning (IBL) practices on other science learning experiences and motivations including STEM (Science, Technology, Engineering, and Mathematics) career aspirations. For this, PISA 2015 data representing the Finnish 15-year-old student population has been selected and analyzed by multiple…