In engineering fields, students are expected to construct technical arguments that demonstrate a discipline's expected use of logic, evidence, and conventions. Many undergraduate bioengineering students struggle to enact the appropriate argument structures when they produce technical posters. To address this problem we implemented Calibrated Peer…

The purposes of this study were to examine initial content knowledge about properties of air by three cohorts of undergraduate and master's students studying elementary education and to determine forms of reasoning used to explain air phenomena and the effect of an intervention on content knowledge. Subjects were assessed using a 14-question test…

The aim of this study was to investigate the effectiveness of conceptual change-based instruction and traditionally designed physics instruction on students' understanding of projectile motion concepts. Misconceptions related to projectile motion concepts were determined by related literature on this subject. Accordingly, the Projectile Motion…

This paper describes a study on research-oriented chemistry teacher education, in which fifty-six advanced, secondary school chemistry student teachers working in teams of two interviewed twenty-eight experienced chemistry teachers. The interviews focussed on teachers' personal viewpoints of how to best teach the different levels of…

The curricula of teacher education need periodic revisions to respond to the evolution of educational objectives. Teachers' beliefs, as well as their characteristics, teaching attitudes and competency in their subject matter play a decisive role in the success of any reform. In this study, a cross-sectional survey was conducted across years 1-5 of…

Background: Rates of overweight in youth have increased at an alarming rate, particularly in minority youth, and depressive symptoms may affect the ability of youth to engage in healthy lifestyle behaviors to manage weight and reduce their risk for health problems. The purpose of this study was to examine the relationships between depressive…

The purpose of this study was to investigate what affect a technology based inquiry approach (TBIA) had on 5th grade primary students' understanding of earth, sun, and moon concept in a science and technology course and how this changed their academic achievements. This study was carried out in a 5th grade elementary science and technology course…

With the development of e-learning technology, many specifications of instructional design have been proposed to make learning activity sharable and reusable. With the specifications and sufficient learning resources, the researches further focus on how to provide learners more appropriate learning activities to improve their learning performance.…

The National Science Education Standards [National Research Council (1996) National science education standards. Washington, DC: National Academy Press] recommend that students understand the apparent patterns of motion of the sun, moon and stars by the end of early elementary school. However, little information exists on students' ability to…

This US study investigates interactive associations between structure in inquiry-type learning activities and academic attainment in high school science with introductory college science performance as the outcome. Past studies of this type have tended to use smaller samples and shorter-range methods of assessing the influence of interactions.…

A guided-inquiry exercise conducted in both the lecture and laboratory components of a college introductory chemistry course for non-science majors is described. The exercise gave students the opportunity to independently determine the relationship between the temperature of water in an aluminum soda can and the intensity of implosion upon placing…

The University of Montana (UM)-Missoula has implemented a problem-based program in which students perform scientific research focused on indoor air pollution. The Air Toxics Under the Big Sky program (Jones et al. 2007; Adams et al. 2008; Ward et al. 2008) provides a community-based framework for understanding the complex relationship between poor…

Since the very beginning of Petnica Science Center students do small research projects in order to learn the basic scientific methodology. Preparing reports and papers is unavoidable part of such learning. After 25 years of work, it is perfectly clear that students learned how to present their results and write papers. However, such results do not…

Colloid dispersion, through its role in soil science, hydrology, and contaminant transport, is a basic component of many natural resources and environmental education programs. However, comprehension of colloid dispersion phenomena is limited by the numerous variables involved. This article demonstrates how the Quirk-Schofield diagram can be used…

Our previous studies have shown that Portuguese primary school pupils and teachers have three main difficulties in the representation of the digestion process: the sequence of the digestive tract, blood absorption, and the relationship of the digestive function with other human functions. In this study we analysed the topic of digestion in 63…