Abstract
In the present paper, we deal with the scaling of the interest and the difficulty in eight subjects of prospective elementary school teachers and children in sixth grade by the method of paired comparisons. The findings of this study are summarized as follows; (1) There were statically the differences between the interest in eight subjects for prospective elementary school teachers and children in sixth grade. (2) There were statically no differences between the difficulty in eight subjects for prospective elementary school teachers and children in sixth grade. (3) The correlations between the interest and the difficulty in seven subjects except physical education revealed a marked negative relationship for children in sixth grade and a law positive relationship for prospective elementary school teachers.