Water and an immiscible organic liquid are placed in a small plastic bottle. Ten small pieces of a notecard which is shaded on one side by crayon or pencil (graphite or colored) are cut out and placed inside the bottle. After capping and shaking, the notecard pieces float at the liquid-liquid interface with the shaded side facing the nonpolar…

Green chemistry provides unique opportunities for student engagement through K-12 and community outreach. As a platform for safe, engaging outreach, green chemistry activities allow for hands-on approaches to introducing science and chemistry concepts in informal settings. Green chemistry outreach also is a means for American Chemical Society…

The advancement of breakthrough concepts in science and their implementation in society can only be achieved by starting early with the education of new generations of scientists. The concept of 'Replacement, Reduction and Refinement' (the 3Rs) in regards to animal use was first described by Russell and Burch in 1959. The 3Rs have nowadays a…

Science, technology, society, and environment (STSE) education is a focus of the public education system of both Canada and Brazil and therefore should translate into the teaching and learning that occurs within their respective Bachelor of Education programs when addressing Science education, and specifically the connections between STSE and…

This article examines two teachers' efforts to re-organize their science teaching around issues of environmental and food justice in the urban community where they teach through the pedagogical approach of community-oriented framing. We introduce this approach to teachers' framing of phenomena in community as supporting students' framing of…

Covariational reasoning (or the coordination of two dynamically changing quantities) is central to secondary STEM subjects, but research has yet to fully explore its applicability to elementary and middle-grade levels within various STEM fields. To address this need, we selected a globally referenced STEM assessment--the Trends in International…

This study uses portraiture methodology to co-construct and share the story of a nationally recognized rural K-8 science teacher with more than 30 years of teaching experience. Our analysis and synthesis revealed one central theme "Step Outside" and three subthemes: (1) Step Outside of the rural classroom, (2) Step Outside of the K-8…

Deep science understanding is reflected in students' ability to use content and skills when making sense of the world. Assessing deep understanding requires measuring complex constructs that combine elements of content and skills. To develop valid measures of complex constructs, we need to understand how their theoretical dimensionality, reflected…

Building on past studies showing that mobile learning improves learning outcomes and differs within a domain (e.g., science), this meta-analysis models domain-specific differences (e.g., learning activities) that drive these differences in science performance. A systematic database search (i.e., Web of Science, JSTOR, ERIC, PsycINFO, ProQuest…

This three-paper dissertation systematically investigates the methodology issues related to using observational systems to observe, analyze, and interpret teachers' reformed teaching practices within the K-12 classroom context. Each paper contributes a distinct perspective to evaluate instructional practices accurately, consistently, and…

The purpose of the present study was to examine the effect of individual and school average achievement on students' self-concept in science. The data of the last four Trends in International Mathematics and Science Study (TIMSS) cycles were used, and a two-stage individual data meta-analysis was conducted to examine the relationship between…

Over the years, there have been various calls to increase and better represent astronomy in curricula. This is motivated by views within the astronomy and astronomy education communities that the awe, wonder, and interdisciplinary nature of astronomy has the potential to engage students in STEM across disciplines. Reviews of curricula have shown…

The Washington State ClimeTime Network has been designed to build capacity for climate science learning, as well as broader NGSS implementation. As a network, we acknowledge the diversity of scientific histories and practices and continue to explore these variations to deepen our teaching and learning of climate science. This paper provides…

Australia participated in the eighth cycle of the Trends in International Mathematics and Science Study (TIMSS). TIMSS is an international sample study that assesses the mathematics and science achievement of Year 4 and Year 8 students every 4 years. Australia has participated in all cycles of TIMSS since it commenced in 1995 and over this 28-year…

This report presents a literature review that was conducted to answer the question -- what can be learned from high performing jurisdictions with respect to scientific literacy? The review intends to build a picture of the education systems, specifically science education, in the five jurisdictions which performed the best in the scientific…