The overhead projector is perhaps passing out of use, but it is still a useful device with which to do lecture demonstrations. In my early years at Kenyon I was teaching the pre-med course, and found that the overhead projector was an ideal platform for showing the phenomena of polarized light. This note is a discussion of how I learned to use the…

The ability to solve physics problems that require multiple concepts from across the physics curriculum--"synthesis" problems--is often a goal of physics instruction. Three experiments were designed to evaluate the effectiveness of two instructional methods employing worked examples on student performance with synthesis problems; these…

Enhancing the delivery quality of school-based, evidence-based prevention programs is one key to ensuring uniform program effects on student outcomes. Program evaluations often focus on content dosage when implementing prevention curricula, however, less is known about implementation quality of prevention content, especially among teachers who may…

As highlighted by the National Math Panel Report (2008), consistent results from laboratory studies have demonstrated that interleaving worked examples with problems to solve improves learning for novices. The purpose of this work is to create materials and tests that can be used flexibly in classrooms and which employ worked examples interleaved…

An attention-grabbing center-of-mass demonstration uses the map of a state mounted on a sheet of heavy cardboard and cut out along the boundaries. The two-dimensional object is hung from a hole punched into a city near the edge, and a string with a pendulum bob attached to it passes through the center of mass. The process is repeated with a…

DEMONSTRATION OF FOOD HANDLING TECHNIQUES WAS AS EFFECTIVE AS THE FOOD LABORATRY APPROACH IN TEACHING HOME ECONOMICS. THEREFORE, INSTRUCTIONAL TELEVISION (ITV) COULD SOLVE THE PROBLEM OF CLASSES TOO LARGE TO USE FOOD LABORATORIES. ACCORDINGLY, THE HOME ECONOMICS AND TELEVISION DEPARTMENTS OF A UNIVERSITY COMBINED TO HELP THE LECTURER-DEMONSTRATOR…

A 4-YEAR STUDY DEMONSTRATED THE FEASIBILITY AND EFFECTIVENESS OF EARLY ADMISSION TO SCHOOL FOR MENTALLY ADVANCED CHILDREN. APPROXIMATELY 800 CHILDREN WERE SCREENED TO LOCATE THE 36 CHILDREN WHO ENTERED KINDERGARTEN BEFORE THE USUAL TIME. CRITERIA FOR EARLY ADMISSION INCLUDED AN INTELLIGENCE QUOTIENT APPROXIMATELY 130 OR HIGHER, SOCIAL MATURITY AT…