Abstract
On evaluating structural concep maps which are drawn by students, most teachers must often get into the following difficulties. 1)The teacher is confused by evaluating each map when the structural arrangement of learning elements and the oriented connected line among learning elements in the map are too complex. 2)The teacher spends a lot of time when he evaluates a great many maps and/or the maps consisted of many learning elements. This paper presents a new measure and its scale to evaluate the maps which are drawn by students. On making up the measure, I examined a kind of properties of four measures, namely consistent coefficient, phi coefficient, symmedian rate and new transfer coefficient in order to evaluate the maps. As the result, it became clear that the measure with transfer coefficient was better scale than all the measures with other coefficients. An agreement rate between a value of evaluation on the maps judged by teachers and a value of evaluation on the maps with transfer coefficient was about 86 percent.
