Die implikasies van die oorgang tot die formeel–operasionele denkvlak vir die onderrig van natuur– en skeikunde

Abstract

The aim of this study was to determine whether the underachievement of pupils in science is due to the fact that the pupils have not reached the phase of formal thinking. The question is whether the difference in achievement in science of pupils with the same I.Q. can be attributed to the fact that the underachiever is on a lower cognitive level than the better achiever. The child in the junior secondary school phase is in or somewhere between the phase of concrete operational thinking or phase of formal operational thinking. An analysis of the syllabi in the junior secondary school phase showed that formal operational thinking is required of pupils especially in standard 7. In this research the population was defined as the Afrikaans-speaking pupils in the junior secondary school phase of the schools in a big town. The experimental group consisted of pupils with I.Q. ≥ 108 with low marks in science while the control group consisted of pupils with I.Q. ≥ 108 who did well in science. In this study 58 pupils were tested individually with 4 tests of formal thinking namely the switches-test (an adaption of the combinations of coloured and colourless chemical bodies-test), equilibrium in the balance, flexibility of rods and the oscillation of a pendulum. A significant difference was found between the experimental and control groups. (F = 28,84, p < 0,001). This study proved the following: (i) Gifted pupils in the junior secondary school phase with poor marks in science haven't reached the level of formal thinking to the same degree as gifted pupils with good marks in science. (ii) Gifted children in standard 6 who did well in science had already reached a plateau with regard to the development of formal thinking. (iii) Pupils differ with regard to the level of cognitive development regardless of having the same I.Q. and age. The above conclusions have the following implications for didactics: - The curricula and syllabi must be combined in such a way that formal thinking is not expected of the child before he is capable of it. Every teacher must try to individualize his teaching methods in order to make provision for differences in the cognitive levels of the pupils in his class.