Research Article
Some problems in the understanding of properties of acid and alkali materials by secondary students
1994 Volume 18 Issue 4 Pages 181-188
Details
1994 Volume 18 Issue 4 Pages 181-188
Acid and alkali materials of are introduced a throughout school science education. The purpose of this paper is to try and get a clearer understanding questions of acid and alkali cognition of secondary students.
From the analysis of responses given from multiple-choice answer and freer responses of the short essay type, the following findings were obtained.
1) About 30% of secondary students have a correct appreciation that acid’s property is connected with hydrogen ions after learning, but they don’t understand this conception.
2) The connection between acid and hydrogen ions has been emphasized in some students’ understanding, on the other, while there are misconceptions such as confusion between hydreogen and hydrogen ion, and hydrogen cognition in relation to incorrect formation of the hydrogen ion model.
