1987 Volume 28 Issue 1 Pages 17-25
This study intends to clarify pupils' ability of differentiation of weight from volume in elementary and lower secondary schools. A conventional style used in similar studies is a pencil-and-paper test, which requests pupils to fill in question items only. It has advantages as easy to control conditions and to research a lot of pupils at a time, but it has also disadvantages as hard to understand situations. I made it some improvements in this study, namely, to incorporate experiment, operation, observation and judgement in order to clarify thinking processes of pupils. Main view points of this research are as follows: 1.Difference between the results gained by a pencil-and-paper test and the ones by an improved test. 2.Relation between the grades of pupils and the abilities of differentiation. 3.Change of the ratio of the pupils educable on differentiation with grade.
