Learning through play is as natural and important for young children as breathing. With this book, parents and teachers can create toys that help children become more confident, develop their intellect, and encourage play and exploration--all with materials easily found at the local hardware store or home center. Written by two experienced family…

The Force and Motion Conceptual Evaluation (FMCE) is a multiple-choice test that has been used to evaluate physics instruction. However, the validity and reliability estimates have not been determined in a way a social scientist would expect. Few psychometric data were used to estimate the validity and reliability of the FMCE instrument. This…

This paper describes how 8th grade students are using CBR, a motion detector linked to a graphing calculator, as a way of generating mathematical ideas regarding the motions concepts that surround their action. Students were previously introduced to the calculators in the classroom and teaching experiments were then carried out afterwards with a…

This study investigated the academic achievement of students at the end of the school year in knowledge of gravity, acceleration, and the relationship between distance, time, and speed. The students' teachers were in the Cheche Konnen professional development seminar for three years. Participating grade levels included a heterogeneous, combined…

This paper intends to bring out the experience of introducing a discipline of History of Science and Technology in an Undergraduate Course of Engineering and a proposal of transforming it so as to help future engineers deal with the challenges posed by the present moment of capitalism, usually called globalization. The discipline was lectured at…

This textbook is a course in natural science and astronomy. The contents include mechanical properties of bodies; mechanics of solids; mechanics of fluids; nature and production of sound; nature and transmission of light; excitation and characteristic effects of electricity; properties and magnets; theoretical astronomy; and descriptive astronomy.

Suggests an instructional presentation designed to give students an intuitive understanding of the uniform acceleration of a body falling toward the earth. (JR)

Describes an experiment studying a free falling object which reaches terminal velocity quickly due to air resistance. The mathematical analysis includes some calculus. (TS)

A discussion of the implications of relativity on the twisting of rods viewed as a one dimensional clock" continuum problem. (TS)