観察・実験によって「振り子の周期」に関する概念はどのように形成されるのか

抄録

This study aimed at devising a teaching strategy and a learning tool for effectively acquiring the concept of a simple pendulum, and examining their teaching effects by conducting science classes on the motion and function of a simple pendulum with respect to 30 fifth-grade students. As a result of conducting the classes, it was found that the following conditions need to be met to effectively acquire the concept of a simple pendulum. 1. Teaching Strategy (1) Length of string : Make the students get on a Tarzan rope for the purpose of recognizing isochronism through physical experience. (2) Pendulum weight : Make the students gather and analyze data acquired on simple pendulum phenomena in the real world to detect isochronism, in a clearly and highly-motivated manner. (3) Amplitude : Make the students iterate the process of mapping data of the numerical world to simple pendulum situation phenomena in the real world. 2. Learning Tool In consideration of the actual situation of the primary school students, give the students the opportunity to visualize simple pendulum phenomena which are difficult to visually capture at a speed that allows for simulation, while allowing each student to manipulate the time base individually in accordance with his/her interest and actual situation.