Nature of science (NOS) is a key component of scientific literacy, so science teacher education on NOS is critical to ensure students' scientific literacy. According to mainstream NOS literature, explicit and reflective interventions are recommended to effectively teach NOS. This paper presents an experience for the initial education of secondary…

A major part of developing concept-based instruction is the use of an overarching idea to provide a conceptual lens through which students view the content of a particular subject. By using a conceptual lens to focus learning, students think at a much deeper level about the content and its facts (Erickson 2007). Therefore, the authors collaborated…

The consideration of threshold concepts is offered in the context of biological education as a theoretical framework that may have utility in the teaching and learning of biology at all levels. Threshold concepts may provide a mechanism to explain the observed punctuated nature of conceptual change. This perspective raises the profile of periods…

This literature review provides an overview of recent studies on the introduction of nanosciences and nanotechnologies in secondary education. Four salient research topics have emerged: questions and reflections preceding curriculum development on nanosciences and nanotechnologies lessons; research on students' conceptualisations of nano-related…

Based on the premise that thestructure of knowledge can aid in the construction of a curriculum because it can guide the organization of knowledge for learning, the author analyses the structure of some physical science concepts. (LC)

Explores elementary children's ideas about insects using 20 K-5 students. Investigates what an insect means to children through the use of three different tasks: (1) draw and explain; (2) interview about instances; and (3) formulation of a general rule. (Contains 31 references.) (Author/YDS)

The objectives outlined for the seminar included the identification of learning problems encountered in curriculum projects in Asia and the development of solutions for these in the light of past or future research on concept development. The report is divided into six chapters. Chapter one presents a comprehensive review of literature on the…

Reports on a study designed to ascertain the proportion of children at different Piagetian stages of development in the general population, in selective schools, and in super-selective schools. Advocates the use of developmental data in curriculum development work. (GS)

Socioscientific issues encompass social dilemmas with conceptual or technological links to science. The process of resolving these issues is best characterized by reasoning which describes the generation and evaluation of positions in response to complex situations. This article presents a critical review of research related to informal reasoning…

Describes how concept maps can be used in biology teaching. Concept maps for genetics and ecology are presented as a model. How to use these maps as curricular and instructional tools and as a means of evaluation is also included. (HM)

Investigates secondary school students' concepts of isotopes and allotropes and how the concepts are linked to the Periodic Table of Elements (PTE). Questions senior high school students with multiple choice items and interviews. Shows that students actively tried to make sense of what they had experienced. (KHR)

Investigates how situational knowledge differs across individuals of different competence levels. Analyzes participants' descriptions of physics problem situations. Discusses the relationship between competence and the structure of problem situations, differences between experts and novices, and implications for teaching. (Author/KHR)

Reports on an investigation of student understanding of the first law of thermodynamics. Involves students from a first-year university physics course and a second-year thermal physics course. Focuses on the ability of students to relate the first law to the adiabatic physics course. Discusses implications for thermal physics and mechanics…

Questions the approach used to the topic of energy in Nuffield Secondary Science. Indicates that 14-year-old children will not be able to generalize from the experiments to see a pattern energing, and the concept of energy involves understanding of other concepts that the children have not yet attained. (GS)

Presents a rationale for providing preschool children with experiences related to classification, seriation, and pattern recognition because they are means by which a child can organize the world around him. These are considered to be the early steps in the long developmental sequence leading to logical thinking and reflective observation. (GS)