In this study, we defined and quantified the degree of cognitive conflict induced by a discrepant event from a cognitive perspective. Based on the scheme developed, we investigated the relationship between cognitive conflict and conceptual change, and the influences of students' cognitive characteristics on conflict in learning the concept of…

The purpose of this study was to explore how Year 8 students answered Third International Mathematics and Science Study (TIMSS) questions and whether the test questions represented the scientific understanding of these students. One hundred and seventy-seven students were tested using written test questions taken from the science test used in the…

This paper describes the methods and outcomes of a 12-year longitudinal study into the effects of an early intervention program, while reflecting back on changes that have occurred in approaches to research, learning and instruction since the preliminary inception stages of the study in the mid 1960s. We began the study to challenge the prevailing…

This paper traces the professional growth of science teachers in Trinidad and Tobago through their involvement in the production of context-based resource materials relevant to the lives of their students during workshop sessions. Grounded theory methods were used to analyse pre- and post-workshop questionnaire responses, tape-recorded group…

The introduction of the Force Concept Inventory (FCI) by David Hestenes and colleagues in 1992 produced a remarkable impact within the community of physics teachers. An instrument to measure student comprehension of the Newtonian concept of force, the FCI demonstrates that active learning leads to far superior student conceptual learning than…

Malathion is an organophosphorus insecticide, which is often sprayed to control mosquitoes. When applied to aquatic habitats, malathion can also influence the embryogenesis of non-target organisms such as frogs and fish. We modified the frog embryo teratogen assay in "Xenopus" (FETAX), a standard toxicological assay, into an investigative…

Concept learning in science and mathematics had often times been taught based on assumptions of alternative concepts or even in some instances based on misconceptions. Some educational researchers favour a constructivist approach in teaching science and mathematics. The constructivist literature existing makes use of alternative conceptions as…

This study explores changes of the tenth-grade students' conceptions about acids and bases by using conceptual change text oriented instruction accompanied with analogies. Since conceptual change is viewed not only as a process of replacement of old concepts but also a process of learning to relate ideas to appropriate contexts, the instruction…

This study aimed to verify the efficacy of a strategy for science learning acquisition based on contextual, metacognitive and socio-cultural perspectives, strongly linked to the paradigm of conceptual change. The teaching model we adopted is based on co-operation for the realization of scientific experiences, and included direct observation, pair…

Nine 12th grade students, attending the science section of the upper secondary school in Cyprus, were individually interviewed about their understanding of the changes associated with the process of oxidation/combustion. Each student was instructed to firstly predict what would happen when heating a piece of copper wire or a piece of magnesium…

In contrast to most other thermodynamic data, entropy values are not given in relation to a certain--more or less arbitrarily defined--zero level. They are listed in standard thermodynamic tables as absolute values of specific substances. Therefore these values describe a physical property of the listed substances. One of the main tasks of…

In keeping with the scientific ideals and goals of actual practice, the concept of scientific literacy that drives the national science standards for elementary and middle school students also focuses on the process of science: observing, inferring, describing, asking questions, constructing explanations, and communicating ideas to others…

College students often experience difficulties in solving physics problems. These difficulties largely result from a lack of conceptual understanding of the topic. The processes of conceptual learning reflect the nature of the causal reasoning process. Two major causal reasoning methods are the covariational and the mechanism-based approaches.…

The aim of this paper was to describe the changes in one student's ideas about force and one-dimensional motion concepts and portray the relevant metaconceptual processes that she engaged in during the implementation of metaconceptual teaching interventions. Metaconceptual processes involves metacognitive processes that are directly acting on or…

What types of instructional experiences help K-8 students learn science with understanding? What do science educators, teachers, teacher leaders, science specialists, professional development staff, curriculum designers, and school administrators need to know to create and support such experiences? "Ready, Set, Science!" guides the way with an…