Abstract:
This study was a quasi-experimental research. The purposes of the research were 1) to study the science learning achievement of students after learning science through SSCS instruction model 2) to compare science learning achievement of students between groups learning science through SSCS instruction model and learning science through the convention instruction method 3) to study the problem solving ability of students after learning science through SSCS instruction model and 4) to compare problem solving ability of students between groups learning science through SSCS instruction model and learning through the convention instruction method. The sample were mattayom suksa one students of Patumratpittayakorn school in Roi-et province in academic year 2005. The sample were divided into two groups with 45 students in each group: an experimental group which was learning science through SSCS instruction model and the comparative group which was learnig science through the convention instruction method. The research instruments were 1) science learning achievement test with reliability at 0.84 and difficulty levels was between 0.45-.080 and 2) problem solving ability test with reliability at 0.79 and difficulty levels was between 0.46-0,80. The collected data were analyzed by means of arithmetic mean, mean of percentage, standard deviation and t-test. The research findings were summarized as follows 1. After the experiment, the mean score of science learning achievement of the experimental group was 72.80% which was higher than the criterion score set at 70%. 2. After the experiment, an experimental group had mean score of science learning achievement higher than comparative group at .05 level of significance. 3. After the experiment, an experimental group had the mean score of problem solving ability higher than before the experiment at .05 level of significance. 4. After the experiment, an experimental group had the mean score of problem solving ability higher than a comparative group at .05 level of significance