Students enrolled in a large-lecture, non-majors biology course employing a diversified instructional approach featuring both instructor-centered and student-centered techniques evaluated the effectiveness of each approach in fostering course goals. Students perceived both approaches to be effective to some extent. Students indicated that the…

In this note, we introduce a simple homemade toy called the brush-creeper, which can glide forward with no propellers, limbs, wheels, and seemingly no movement of any kind that can push forward against the ground. The toy arouses pupils' interest and their incentive to ask "Why?" in lessons related to friction.

Challenging basic principles of constitutional law, advocates of intelligent design are undermining educators' ability to teach evolution in their science classrooms. Because US Supreme Court rulings now prohibit creationist accounts of the origin of life in schools, arguments favoring divine intervention, known as intelligent design, have emerged…

A set of highly atom-economic experiments was developed to highlight the differences between acid- and base-catalyzed ester syntheses and to introduce the principles of atom economy. The hydrochloric acid-catalyzed formation of an ester was compared with the 4-dimethylaminopyradine-catalyzed ester synthesis.

Background: Previous models of the effects of feedback account for lower-order learning outcomes but do not adequately describe experimental findings for higher-order learning. Aims: Based on a connectionist model of feedback effects, this investigation aims to show that feedback that allows only one learner response facilitates…

Bernoulli's principle is being misunderstood and consequently misused. This paper clarifies the issues involved, hypothesises as to how this unfortunate situation has arisen, provides sound explanations for many everyday phenomena involving moving air, and makes associated recommendations for teaching the effects of moving fluids.

The evangelical tone and history of American culture has long been identified as a force for anti-intellectualism. The metaphors of educational reform are a demonstration of how this plays out. The very nature of the positivist social science research used to support proposed reform is anti-intellectual and feeds a debate that favors extremes over…

Historical stories of scientists provide an excellent opportunity to help students see that science is indeed a human endeavor and demonstrate the interrelationships among science, technology, and society. A number of engaging historical accounts illustrate characteristics of the nature of science. The story of Lise Meitner leads students through…

Conversations on the connection of art, beauty, and the aesthetic experience in science are gaining a voice in the science education community. This article provides a conceptual overview of the role of beauty and aesthetics in science and science education. It focuses on a discussion of four themes exploring beauty in scientific ideas and…

Today, geodesic domes are found on playgrounds, homes, over radar installations, storage facilities, at Disney's Epcot Center, and at World's Fairs. The inventor of the design, Buckminster Fuller, thought that geodesic domes could be used to cover large areas and even designed one to cover all of New York's Manhattan Island. This article details…

A tentative classification of internal departments of psycholinguistics is suggested and a list of applied fields is presented. Applied psycholinguistics is not seen here to have a right to scientific independence. (SCC)

The preservation of variation in plural societies as a step toward increasing evolutionary potential through a model of incorporative change is proposed as a procedural ethic with the special virtue of placing moral decision making in the hands of those who will be undergoing change. (JC)

The conceptual steps that first led Galileo toward his principle are reconstructed showing that his thoughts on the subject of motions that are neither natural nor forced were of fundamental importance. (MP)

The author argues that the scientific method, as it is commonly understood, is a myth. (BD)