Describes a class project to determine which environmental condition, such as light, heat, and type of basking substrate, would result in the least and most turtle basking behavior. (PR)

Describes how students in grades 2-8 can make beakers from quart-sized oil containers and calibrate them in milliliters. In an second activity, students estimate the volume of water in four jars and use their beakers to measure the water in each. The estimates are compared to the true measurements. (PR)

Describes a simulation of chemical reactions to help students understand factors that affect the rates of chemical reactions. (PR)

Observes that students in introductory and intermediate economics courses often have difficulty understanding concepts of trade and budget deficits. Presents a graphical technique to be used as a framework for teaching these concepts in the classroom. Claims that this technique is effective in other comparative statistics exercises. (NL)

Describes the 75 hours of primary source material compiled on videotape, covering 2217 individual units, and spanning 93 years of world history found in "The Video Encyclopedia of the 20th Century." Presents strategies for using the "Video Encyclopedia" themes for world history, as well as descriptions of sample units contained…

Described are ways in which some teachers have used a software package called "The Geometric Supposer." The development of inquiry skills is stressed. Recommendations for students using the Supposer are provided. (CW)

The use of calculators in helping students to construct their own learning is discussed. Two games which illustrate this concept are presented. The features of a constructivist lesson which uses calculators are listed. (CW)

Presents methods and questions for discussion, activities, role plays, and assessment methods for helping students understand the importance of water conservation. (PR)

Contends that criticism of progressive pedagogical methods may be creating an ideologically neutral orthodoxy of primary school practice in Great Britain. Expresses caution about this development by defending principles underlying progressive education. Argues for the development of child-centered teaching methods within the National Curriculum.…

Describes activities to help students understand pH scales and acid rain. (PR)

Describes the background and development of the Geographic Inquiry into Global Issues (GIGI) project. Maintains that the secondary school lessons are designed to teach citizenship and critical thinking skills. Emphasizes that the pedagogical approach is founded on the inquiry approach. (CFR)

Describes a mathematics course for prospective elementary teachers that has teaching and learning mathematics via problem solving at its core. Presents a problem-solving activity involving number theory and reactions by the students and teacher to the activity. (MDH)

A learning cycle lesson consists of three phases: concept exploration, concept introduction, and concept application. Describes the application of the learning cycle model to the design of inservice and preservice teacher education curriculum. (MDH)

Describes a three-week environmental minicourse in a general chemistry class. The minicourse consisted of two distinct phases, a one-week introduction to environmental chemistry and a two-week project involving a particular environmental problem. (PR)

Describes an activity that shows how understanding a modern coral reef environment helps predict the location of old subsurface reefs that may contain oil. (PR)