Background: Surprisingly little is known from a research perspective about the conceptual development of children's understanding of rainbows and rainbow formation. Yet research has shown that teachers tend to overestimate the proportion of students' correct answers in this domain. The present cross-sectional study aims to rectify this…

312 Singaporean children aged 4, 7, and 10 years from four different home language backgrounds--English, Malay, Mandarin, and Tamil--were tested for their recognition of animals and non-animals. The Malay-speaking group of children was the notable group that showed a different developmental pattern from the other three groups. They performed…

In this article, the author, a teacher at Cookridge Primary School in Leeds, West Yorkshire, reflects on the teaching of science from reception across the year groups. To really compare and understand the differences of teaching science in early years, the author looks at its place in the progression of science throughout primary school. The…

This research project aimed to identify and analyze Mexican primary school students' ideas about the components of the solar system. In particular, this study focused on conceptions of the solar system and representations of the dynamics of the solar system based on the functional and structural models that students make in school. Using a…

The aim of this study is to reveal the students' and pre-service teachers' understanding of light, sight and related concepts at different educational levels, from primary to higher education. A cross-sectional approach was used since the participants were of different age and educational level. The sample of this study consisted of 30 eighth…

Understanding what children know is paramount to planning effective science instruction; however, in any classroom, the students hold a variety of ideas. Representing these differences in ways that also acknowledge the common trends among students might facilitate the process of differentiation. To exemplify one such possible process of…

This study reports on our steps toward achieving a conceptually coherent and empirically validated learning progression for carbon cycling in socio-ecological systems. It describes an iterative process of designing and analyzing assessment and interview data from students in upper elementary through high school. The product of our development…

This article is the first of a two-part review of research on children's and adults understanding of gravity and on how best to teach gravity concepts to students and teachers. This first article concerns free fall--how and why objects fall when they are dropped. The review begins with a brief historical sketch of how these ideas were developed in…

This is the second and final part of a review of educational research on children's ideas about gravity. The first part concerned students' understanding of how and why things fall. This article picks up the trail of research studies that address students' understanding of the more complex ideas of projectile motion and orbits and examines how the…

Discusses students' formation of concepts about energy, classifying responses as living/nonliving, human (vitalism or activity), and nonhuman (supply or demand). Observations were based on class discussions and free writing, followed by questioning to check on stability of concepts. Also collected and reported are student responses (examples of…