The distant magnetic field of a magnetic dipole is usually derived via the magnetic vector potential and substantial vector calculus. This paper presents an alternate proof that is less mathematically intensive, and that ties together various problem-solving tricks (the principle of virtual work, observation that only instantaneous quantities…

This paper describes use of a linear motor as a starting point for introducing related electricity and magnetism concepts. The Linear Motor Laboratory consists of a series of mechanisms and student learning activities centered around a reconstruction of the Charles Page Electromagnetic Engine patented in 1854. This work was undertaken in the Make…

This brief describes the components found in magnet schools that are both racially diverse and educationally effective. It also outlines four evidence-based policy recommendations that can inform federal, state, and local efforts to help design, implement, and sustain effective magnet schools that foster integrated learning and positive student…

Harmful plastic debris found on beaches and in the oceans are not limited to drinking straws or bags. There are several synthetic organic polymers that can be used to make different kinds of plastic materials and have resulted in billions of tons of waste that can reach the aquatic biome and are harmful to freshwater and marine communities as well…

The International Technology and Engineering Educators Association (ITEEA) defines STEM as a new transdisciplinary subject in schools that integrates the disciplines of science, technology, engineering, and mathematics into a single course of study. There are three major problems with this definition: There is no consensus in support of the ITEEA…

By describing the motion of a charged particle in the well-known nonuniform field of a current-carrying long straight wire, a variety of teaching/learning opportunities are described: 1) Brief review of a standard problem; 2) Vector analysis; 3) Dimensionless variables; 4) Coupled differential equations; 5) Numerical solutions.

We present a sequence of activities aimed at promoting both learning about magnetic forces and students' reflection about the conceptual bridge between magnetic forces on a moving charge and on a current-carrying wire in a magnetic field. The activity sequence, designed for students in high school or on introductory physics courses, has been…

This paper illustrates a series of activities designed to encourage fourth to sixth-grade students to develop their conceptions of magnets. Through scaffolding activities and facilitation from the teacher, students will be able to generate, evaluate, and refine their explanations for how magnets work. Students can gradually develop sophisticated…

The National Curriculum for 14-16 year old students in England contains a mandatory element called "How science works". Included in this material is interpretation of data, collecting data from primary sources, using ICT tools, and developing an argument and drawing conclusions. What follows is an activity, based on magnetic braking,…

The following idealized problem is intended to illustrate some basic thermodynamic concepts involved in kinetic friction. A block of mass m is sliding on top of a frictional, flat-topped table of mass M. The table is magnetically levitated, so that it can move without thermal contact and friction across a horizontal floor. The table is initially…

Discusses the properties of neodymium magnets and magnets in general and how magnets can be used to teach students important scientific principles, such as attraction, repulsion, and polarity; the role of magnetic forces in electronic communications and computers; the magnetic properties of the earth and compasses; and the relationship between…

Robert Sternberg's triarchic theory of intelligence presupposes that students exhibit at least three kinds of intelligence: creative, practical, and analytical. Staff at the Wake County (North Carolina) School System designed learning activities to give students balanced experiences and a time to shine in the learning mode that suits them best.…

Describes the curriculum at Frost Lake (Minnesota) Magnet School of Technology and Global Studies, which integrates technology, basic skills, and global education to teach respect for diversity and justice and peace issues in multicultural education. Objectives, activities, and resources for three sample lessons are presented. (LRW)

Presents two geography problem-solving scenarios for use with elementary and middle school children or preservice teachers in social studies methods courses. Provides problems about the magnetic poles and the presence of ice in desert conditions. Calls upon teachers to encourage students to use their thinking skills to solve the problems. (SG)

Lubbock (Texas) High School, a successful magnet and neighborhood school, discovered the benefits of flexible scheduling over 15 years ago. The unique schedule and other organizational structures have sustained a successful magnet program, created a diversity-enhancing culture, and revitalized a school near closure in 1978. (MLH)