A simple hands-on model for illustrating the concept of isotope dilution analysis (IDA) has been devised. The model consists of two sets of beads of different sizes, with one set representing atoms of the analyte and the other set representing solvent water molecules. Phase separation is mimicked by sieving the beads, and the results are detected…

Technology and globalization in education have dramatically changed the landscape for teachers. New roles for teachers include resource providers, content specialists, learning facilitators, and lifelong learners. This is especially true in the ever-changing fields of science, technology, engineering, and mathematics (STEM). Therefore, colleges…

Large numbers of U.S. students lack proficiency in science, and students from different ethnic and socioeconomic groups show disparities in science achievement.2 Science knowledge and skills are important for both academic and workplace success, and a variety of interventions have been developed to improve student science achievement.…

This paper describes investigative homework with apples, aiming to contribute to the primary-school students' understanding of density and conditions leading to floating and sinking. The assignment represents an opportunity for individual autonomous learning of physics and adoption of established scientific concepts through practical activities…

After the collapse of the former Soviet Union, many Central and Eastern European countries underwent significant change in their political and educational systems, among them Georgia and Moldova. Reforms in education sought to overcome the highly centralized educational system of the former Soviet Union as well as to conquer the teacher-centred…

"ARIES: Exploring Motion and Forces" is a physical science curriculum for students in grades 5-8 that employs 18 inquiry-centered, hands-on lessons called "explorations." The curriculum draws upon students' curiosity to explore phenomena, allowing for a discovery-based learning process. Group-centered lab work is designed to…

In a contest featuring hands-on projects, college students were required to design a simple crawling worm using planning, self-monitoring and self-evaluation processes to solve contradictive problems. To enhance the efficiency of problem solving, one needs to practice meta-cognition based on an application of related scientific concepts. The…

In the current Higher Education climate, there is a pressing need to integrate research and teaching in the student learning experience. In order to create synergy between research and teaching activities, to the benefit of students and instructors, we provided students with the opportunity to participate in a high profile collaboration between…

This article reports on issues arising from the external evaluation of a teacher development project--the Active Learning in Primary Science (ALPS) project--undertaken in eight Bristol (UK) primary schools during 2007. The ALPS project aimed to raise pupil attainment in science by developing participating teachers' skills, knowledge and enthusiasm…

To understand evolutionary theory, students must be able to understand and use evolutionary trees and their underlying concepts. Active, hands-on curricula relevant to macroevolution can be challenging to implement across large college-level classes where textbook learning is the norm. We evaluated two approaches to helping students learn…

Active learning modules offer secondary students the opportunity to participate in the excitement of invention before getting "turned off" by the heavy course loads required of majors in science and technology. Instead of slogging through controlled, predictable lab exercises, students can become active producers by working collaboratively on…

Faculty members from the University of South Dakota attended the Curriculum Reform Institute offered by the University of Wisconsin at Oshkosh, WI, during the summer of 2002 to design a course sequence for elementary education majors that better meets their needs for both content and pedagogy based on the science education standards. The special…