Explains a laboratory activity in which students study the effects of balanced and unbalanced nutrition on individuals' health by examining simulated urine samples. Uses a journal writing approach and includes laboratory instructions. (YDS)

The study examines how social and cultural factors mediate the teaching and learning of science in an Australian high school. Grade 10 students, many of them new migrants, often transient and from circumstances of economic hardship, were taught a 5-week unit on chemistry by a teacher with social and cultural histories similar to those of most of…

Various elementary schools and middle schools across the U.S. have purchased one or more mobile laboratories. Although the wireless labs have provided more classroom computing, teachers and technology aides still have mixed views about their cost-benefit ratio. This is because the proliferation of viruses and spyware has dramatically increased…

Whether in the science or language laboratory, carrying out health care procedures or demonstrating performance arts, faculty can improve skill evaluation through transparency and authenticity in exam construction, format, and grading.

Over the last decade, remote instruments have become widely used in astronomy. Educational applications are more recent. This paper describes a program to bring radio astronomy into the undergraduate classroom through the use of a remote research-grade radio telescope, the MIT Haystack Observatory 37 m telescope. We examine the effectiveness of…

This article presents the authors' perspectives on Electronic Collaborative Educational Learning Laboratory (ECELL), an innovative summer school experiment conducted over 5 years from 1997 to 2001. The authors offer a detailed picture of the ECELL as a philosophy of professional development, as an organizing framework, and as a community of…

As students apply their knowledge of scientific concepts and of science as a method of inquiry, learning becomes relevant. This laboratory exercise is designed to foster students' understanding of the genetics of quantitative traits and of the nature of science as a method of inquiry by engaging them in a real-world business scenario. During the…

This qualitative study looked at how early childhood teachers talk about and interact with the most powerful children in their classrooms--the student leaders. Relying primarily on interviews with six teachers in early childhood classrooms (infants, toddlers, and preschoolers) within a University-affiliated center, this paper reconsidered…

General math students--the first quartile in math--are having trouble passing the Washington Assessment of Student Learning (WASL), and there are several reasons why: (1) They have poor math skills and not much aptitude; (2) They never see all of the needed curriculum; (3) Their learning style directly conflicts with the organizational patterns in…

Hands-on science typically uses physical materials to give students first-hand experience in scientific methodologies, but the recent availability of virtual laboratories raises an important question about whether what students' hands are on matters to their learning. The overall findings of two articles that employed simple comparisons of…

The calls for the transformation of how science is taught (and what is taught) are numerous and show no sign of abating. Common amongst these calls is the need to shift from the traditional teaching and learning towards a model that represents the social constructivist epistemology. These calls have coincided with the Internet revolution. Through…

Increasingly, national stakeholders express concern that U.S. college graduates cannot adequately solve problems and think critically. As a set of cognitive abilities, critical thinking skills provide students with tangible academic, personal, and professional benefits that may ultimately address these concerns. As an instructional method, writing…

The availability of distance courses has made it possible for some people to attend college because courses are accessible within their locality, or the time of course delivery is convenient to them. This opportunity for learning has not been without critiques of the quality of such instruction. Technology education programs with a history of…

This publication presents changes and modifications for 2006-2007 to the "International Rules for Precollege Science Research: Guidelines for Science and Engineering Fairs." It is written to guide fair directors, teachers, scientists, parents, and adult volunteers as they pursue their work of encouraging students to explore and investigate their…

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…