In this article we present and discuss some theoretical and methodological elements of a wider research that analyzes the teaching practice of two teachers novice and expert from a semiotic theoretical approach. The conceptual framework of this work allows for addressing the epistemological and didactic dimensions of the teaching practice. Three…

Many modern anatomy curricula teach histology using virtual microscopes, where students inspect tissue slices in a computer program (e.g. a web browser). However, the educational data mining (EDM) potential of these virtual microscopes remains under-utilized. In this paper, we use EDM techniques to investigate three research questions on a virtual…

In formal education, the teaching of natural sciences begins when children are about 12 years old. Teachers justify this with the difficulty and abstraction of concepts in these sciences, and they refer to the theory of child development by Piaget. However, numerous examples from everyday life, from non-formal education, analysis of the…

Dealing with multiple external representations (MERs) in science education is the key to students' understanding of science communication and becoming scientifically literate. It is generally accepted that learning scientific concepts, processes, and principles requires understanding and interacting with MERs. Science can be understood as a…

Fluid Mechanics is one of the most complex branches of science to learn. Traditionally, it has been taught from a positivism point of view. However, the latest technologies have led to the creation of new educational tools based on a constructivism approach as a complement to conventional teaching. This paper addresses the development of a course…

In this paper, we propose a computational approach to model the Zone of Proximal Development (ZPD) using predicted probabilities of correctness and engaging students in reflective dialogue. To that end, we employ a predictive model that uses a linear function of a variety of parameters, including difficulty and student knowledge and we analyze the…

In this paper, we propose a computational approach to modeling the Zone of Proximal Development of students who learn using a natural language tutoring system for physics. We employ a student model that predicts students' performance based on their prior knowledge and their activity when using a dialogue tutor to practice with conceptual,…

This qualitative study examined the complexities of mutually engaging across differing positionalities (students and students, students and teacher) while intentionally working in spaces of distress (e.g. push and pull between oppression and liberation). The findings demonstrated the ways in which building a beloved community while situated within…

This study relied on motivational models derived from self-determination theory to explain how garden-based science activities can contribute to minority students' motivation and learning in science class and academic identity in science. Participants were 105 sixth-grade students from primarily low-SES families at two diverse urban schools.…

This study explored the ways in which our classroom community (students and teacher) engaged with humanizing pedagogy in a seventh grade science classroom, toward the full development of our classroom community, and the dismantling of inequitable practices and unjust policies that we recognized in our science classroom, school and/or community…

Diverse alternative conceptions embedded in the minds of learners of biology impede their learning of evolution. Our study aimed to find out the acceptance level of the theory of evolution in high school students in Singapore, characterise how students describe human evolution, and measure the prevalence of common alternative conceptions in the…

The racial and ethnic makeup of the United States is in constant flux and is expected to experience substantial increases over the next four decades. The problem the American educational system face is attempting to problematize race/racism in its educational system and creating a system to counteract that. The disparity we face grows as teacher…

(Purpose) This article describes the use of tiered instruction, a specific form of differentiation, within the author's high school Physics classroom. A background and discussion on the nature of tiered instruction is also included. (Findings) Topics addressed in this paper include: (1) the necessity of differentiation within the classroom; (2)…

It has been reported (Aagaard & Skidmore, 2004; Sikorski et al., 2002) that only a minority of college students actually read the course textbook in preparation for examinations. Although professors widely lament students' propensity to ignore the carefully chosen textbooks, research specifically investigating why this phenomenon occurs is…

The paper is the outcome of an experiential learning episode encountered by a teacher educator (the author) with a group of student-teachers under his mentorship during a session of the practice teaching programme (2006-07) at the secondary school level. The crisis faced by a student teacher in connection with the development of a lesson template…