On the ”Play with Magnet” in the elementary school science and simple method for recognition of the earth's magnetic field.

Abstract..Treatments on magnet and magnetism are reviewed and discussed concerning with the newly reviced ”Course of Studies”, especially in the elementary school sicences. Discussions are made also on how to acquire the fundamentals of scientific concepts and on what the science education and/or study ought to be. The present author proposed an unique and simple technique to get the clear concept that the earth's magnetic field exists surroundring us, by means of squeezing a soft iron wire.