Science, technology, engineering, and mathematics (STEM) fields, important in today's world, are underrepresented by students with disabilities. Students with visual impairments, although cognitively similar to sighted peers, face challenges as STEM subjects are often taught using visuals. They need alternative forms of access such as enlarged or…

The current trends in science education emphasize students' engagement in scientific inquiry and deemphasize memorization of factual knowledge. In response to these trends, reform-based curricula often characterize students engaging in science investigations by listing the detailed steps of scientific practices. Unfortunately, if curricula stress…

This research is concerned with preservice teacher understanding of six earth and space science concepts that are often taught in elementary school: the reason for seasons, phases of the moon, why the wind blows, the rock cycle, soil formation, and earthquakes. Specifically, this study examines the effect of readings, hands-on learning stations,…

Inquiry practices often involve more student-centered activities where students interact more intensively with materials and with other students during investigations. In addition to monitoring the learning taking place, teachers in an inquiry classroom have to manage more movements of materials and equipment and the social dynamics among…

Teacher research--often called "action research"--is an intentional and systematic inquiry into one's own classroom practice with the goal of improved student learning (Cochran-Smith and Lytle 1993). In this article, the authors present a teacher research project undertaken to improve student understanding of the gas laws in a high…

This activity ties together the recycling of aluminum and the protection of rain forests. Students use critical thinking to study the effects of open pit mining of bauxite in rain forests and then draw their own conclusions about how to minimize the impact of bauxite mining and boost recycling efforts within their communities. Drawing conclusions…

We describe an extended third-year undergraduate chemistry laboratory exercise in which a number of techniques and concepts are applied to the same set of chemical reactions. The reactions are the photochemical and thermal cycloadditions of [beta]-nitrostyrene and 2,3-dimethylbutadiene. This can be viewed as a single long lab or a series of…

Have you ever thought about which pigments are found in tattoos and how laser treatment eliminates the pigmentation? In pursuit of losing weight, have you considered why artificial sweeteners are advertised as low calorie? During a four-week South Carolina Governor's School course, "Got Bio?", high school students were introduced to the…

A simple commercial blood glucose meter is used to follow the kinetics of mutarotation of D-glucose in aqueous solution. The results may be compared with those obtained using an automatic polarimeter, if this is available This experiment is proposed for use by students in a general chemistry, biology, organic chemistry, and physical chemistry…

This study is an analysis of the effectiveness of a faculty-designed laboratory experience about a difficult topic, cellular respiration. The activity involves a hands-on model of the cellular-respiration process, making use of wooden ball-and-stick chemistry models and small toy trucks on a table top model of the mitochondrion. Students…

This article discusses Global Learning and Observations to Benefit the Environment (GLOBE), a worldwide, hands-on science and education program for primary and secondary students. GLOBE brings together students, teachers, scientists, and community members to collaborate on inquiry-based investigations of the environment. Now in its 13th year, more…

A cheap replica of the verge-and-foliot clock has been built from simple materials. It is a didactic tool of great power for physics teaching at every stage of schooling, in particular at university level. An account is given of its construction and its working principles, together with motivated examples of a few activities. (Contains 3 tables…

This study aims to understand the design and implementation of elementary methods classes focused in science instruction by teacher educators in the colleges and universities in the state of Arkansas. All 18 institutions with an Early Childhood Education program approved by the Arkansas Department of Education were reviewed with interviews, site…

A regioselective, safe and efficient method for the synthesis of vanillin from 4-hydroxybenzaldehyde is being described. The vanillin derived from the process is cheap and can be used as a flavor or in the paper industry.

Learning modern genetics is challenging and students have difficulty acquiring a coherent cognitive mental model of abstract concepts such as DNA, bacteria and enzymes. Here we investigated students' mental models of genetics through analysis and interpretation of the discourse that took place while high-school students practised hands-on…