This study, the effects of computer simulations on the teaching and learning of Atomic Combinations was carried out in the Tshwane North District of Gauteng Province in South Africa. The study employed a non-randomized control-group pre-test and post-test quasi-experimental design involving two grade 11 Physical Science classes; one as an experimental (52) and the other as a control group (53). An Achievement Test consisting of 30 multiple-choice questions and a Structured Questionnaire designed for teacher and learner participants were the principal data collection tools used. The questionnaire was developed to answer research questions two and three that guided this study. The questionnaire tested how much learners and teachers were familiar with the use of computers and if there were any hindrances to computer usage. The achievement test instrument was administered as a pre-test and post-test to answer research question one. The experimental group received computer-assisted teaching and the control group was taught using traditional teaching method (lecture) on the same topics. The intervention took two and a half weeks for each of the schools involved in the study. Analyses of scores of the two groups in post-test were compared using Statistical Package for the Social Sciences (SPSS) independent t-test version 16.0. The results showed that t = 0.467, df = 103, p = 0.048 and the Sig. (2-tailed) value is 0.641. Since sig. (2-tailed) value is greater than 0.05, it can be concluded that there is no statistical significant difference between the experimental group and the control group. / Science and Technology Education / M. Sc. (Mathematics, Science & Technology Education)

This study, the effects of computer simulations on the teaching and learning of Atomic Combinations was carried out in the Tshwane North District of Gauteng Province in South Africa. The study employed a non-randomized control-group pre-test and post-test quasi-experimental design involving two grade 11 Physical Science classes; one as an experimental (52) and the other as a control group (53). An Achievement Test consisting of 30 multiple-choice questions and a Structured Questionnaire designed for teacher and learner participants were the principal data collection tools used. The questionnaire was developed to answer research questions two and three that guided this study. The questionnaire tested how much learners and teachers were familiar with the use of computers and if there were any hindrances to computer usage. The achievement test instrument was administered as a pre-test and post-test to answer research question one. The experimental group received computer-assisted teaching and the control group was taught using traditional teaching method (lecture) on the same topics. The intervention took two and a half weeks for each of the schools involved in the study. Analyses of scores of the two groups in post-test were compared using Statistical Package for the Social Sciences (SPSS) independent t-test version 16.0. The results showed that t = 0.467, df = 103, p = 0.048 and the Sig. (2-tailed) value is 0.641. Since sig. (2-tailed) value is greater than 0.05, it can be concluded that there is no statistical significant difference between the experimental group and the control group. / Science and Technology Education / M. Sc. (Mathematics, Science & Technology Education)