This article describes a discovery-oriented experiment for demonstrating the selectivity of two epoxidation reactions. Peroxy acids and alkaline H[subscript 2]O[subscript 2] are two commonly used reagents for alkene epoxidation. The former react preferentially with electron-rich alkenes while the latter works better with alpha,beta-unsaturated…

This module presents the range of benefits youths receive from their participation in Community Science Workshops (CSWs)--from personal, to social, to academic and how these benefits reveal the core values of the CSWs in action. The multi-year evaluation of the CSW program included site visits to multiple Community Science Workshop sites around…

This article presents a learning cycle with the aim of helping students understand the evidentiary basis of scientific claims. Students consider data and interpretations as used to support contradictory views in the debate surrounding the causal relationship between human immunodeficiency virus (HIV) and acquired immunodeficiency syndrome (AIDS).…

This resource book contains 18 magic number tricks that spark the interest and imagination of students as they are led through a variety of mathematical computations and discoveries. Following each activity, students are asked to write about their discoveries and create their own magic tricks. A matrix of skills for all the activities and lists of…

This book reiterates the fundamental purpose of Maria Montessori's philosophy of bringing about a "better world by nurturing the spirit of the child." The book draws upon published authorities on the importance of the nurturing of the spirit, along with experiences of active Montessorians for everyday examples of nurturing spirituality…

This paper provides information on teaching science to students with special needs. The focus is placed on students with learning disabilities who may behave inappropriately due to frustration about their academic deficits. This perception is often brought about by a predominant mode of instruction in schools which is text-driven,…

This study seeks to establish which scientific reasoning skills are primarily domain-general and which appear to be domain-specific. The subjects, 12 university undergraduates, each participated in self-directed experimentation with three different content domains. The experimentation contexts were computer-based laboratories in d.c. circuits…

Describes activities for the elementary school classroom to increase observational accuracy of children. (CP)

An activity-based unit on congruence and similarity is described. The themes underlying the unit are the usefulness of analogy in determining mathematical principles, and the notion that the number of conditions imposed on figures affects the number of factors which must be specified to insure congruence or similarity. (SD)

Methods of motivating junior high school students in the study of mathematics includes use of contemporary materials, introducing topics related to history, applications, and recreations, and providing for guessing, laboratory experiences, and discovery. (SD)

This article is a rejoinder to TM 501 928. (DEP)

Students, using the materials provided, can determine the number of diagonals, number of triangles formed by the diagonals, and degree measures of interior and exterior angles of regular polygons. The activity is designed to lead them to general formulae for polygons with n sides. (SD)

The author describes use of hand calculators and computers in the college classroom. He discusses his philosophy about their use, and presents several problems which are especially amenable to use of a computer with a plotting facility. (SD)