Probeware is increasingly being implemented in science classrooms because it is less expensive than it used to be and improvements in hardware and software have made it more accessible to students and teachers. Many probes or sensors can now simply be connected to a computer, calculator, or other handheld device, and will immediately begin to…

Most high school chemistry labs contain detailed procedures on how to perform experiments, collect data, and analyze findings. These step-by-step instructions often eliminate opportunities for inquiry, higher levels of thinking, and the sense of accomplishment students find through independent discovery. For these reasons, two years ago the author…

To help students understand the real-world applications of calculus, our calculus students all take part in a lab. This is not another "computer lab" but a lab where the students perform experiments and then collect and analyze the data. The students are able to verify for themselves many of physical claims that are left as theory in…

This document presents descriptions of 11 experimental, descriptive, and naturalistic research designs created by classroom teachers about questions that they had and that they investigated within the context of teaching dynamics unique to their classrooms. An action research approach was utilized, emphasizing immediate application of a method and…

This guide contains 43 modules of laboratory activities for technology education courses. Each module includes an instructor's resource sheet and the student laboratory activity. Instructor's resource sheets include some or all of the following elements: module number, course title, activity topic, estimated time, essential elements, objectives,…

The Zimbabwe Secondary School Science Project (ZIM-SCI) developed student study guides, corresponding teaching guides, and science kits for a low-cost science course which could be taught during the first 2 years of secondary school without the aid of qualified teachers and conventional laboratories. This teaching guide, designed to be read in…

The Zimbabwe Secondary School Science Project (ZIM-SCI) developed student study guides, corresponding teaching guides, and science kits for a low-cost science course which could be taught during the first 2 years of secondary school without the aid of qualified teachers and conventional laboratories. This teaching guide, designed to be read in…

Undergraduates from chemical engineering, applied chemistry, and environmental science courses, together with first-year postgraduate research students in electrochemical technology, are provided with an experiment that demonstrates the reduction of dissolved oxygen in aerated seawater at 25°C. Oxygen reduction is examined using linear sweep…

Computer interfaced electrostatic charge sensors allow both qualitative and quantitative measurements of electrostatic charge but are quite sensitive to charges accumulating on modern synthetic materials. They need to be used with care so that students can correctly interpret their measurements. This paper describes the operation of the sensors,…

The techniques used for teaching college economics have remained relatively unchanged over the past few decades. These techniques do not give the students an opportunity to apply, to develop, or to practice the economic theory they read about and hear in lectures. They tend to reinforce student assumptions about the subject's "givenness"…

This book is the teacher's edition to the 1987 edition of the Biological Sciences Curriculum Study Green Version textbook. It contains directions for teaching with this version, a description of the accompanying materials, teaching strategies by chapters, lists of useful software, safety guidelines, a materials list, chemical safety information,…

In the framework of a curriculum reform in the Netherlands, an interdisciplinary open inquiry assignment has been introduced as a part of the final secondary school examinations. We developed and evaluated a preparatory open inquiry assignment to be used in science and mathematics departments of schools, in collaboration with each other: the…

THIS DOCUMENT SUMMARIZES A TWO YEAR RESEARCH PROJECT DESIGNED TO EVALUATE INTRODUCTION OF EDUCATIONAL TELEVISION IN COLOMBIAN SCHOOLS BY THE PEACE CORPS. MANY DIFFERENT STUDIES OF PEACE CORPS EFFECTIVENESS WERE CONDUCTED, USING FIELD EXPERIMENT AND SURVEY (MAIL QUESTIONNAIRE, PANEL, INTERVIEW) TECHNIQUES TO MEASURE ATTITUDES AND BEHAVIORS OF PEACE…

IN 1964, THE UNIVERSITY OF CALIFORNIA, SANTA BARBARA, CONDUCTED AN EXPERIMENT REPLACING 50 PERCENT OF STUDENT-TEACHER CONTACT WITH PRE-RECORDED TELEVISION LECTURES FOR TWO OF SIX SECTIONS OF GERMAN. ELEMENTS NORMALLY PRESENTED BY LECTURES WERE ISOLATED FROM CURRENT COURSE MATERIALS FOR TELEVISION PRESENTATION. IT WAS BELIEVED THAT THE QUALITY OF…

In 1977 the Radio Mathematics Project provided radio lessons in mathematics for 2,800 students enrolled in 105 second-grade and third-grade classes in Nicaraguan public schools. Comparisons between randomly selected experimental and traditionally taught groups show that the achievement at the end of both second and third grade was significantly…