Abstract:
The purposes of this research were to compare creative thinking and constructing scientific model ability after using model-based learning with traditional instruction and to compared creative thinking and constructing scientific model ability after using model-based learning with the 70-percent criterion. The samples were obtained by cluster random sampling of 80 twelfth-grade students studying in the second semester of academic year 2019 at Wat Songtham School. There are 41 students for experimental group and 39 students for control group. The research instrument consisted of model-based learning lesson plans, traditional instruction lesson plans, creative thinking test and constructing scientific model ability test. The data was analyzed using Mean, Standard Deviation, t-test for independent sample and t-test for one sample. The results indicated that: 1. The creative thinking of twelfth-grade students after learning using model-based learning were significantly higher than the traditional instruction at the .05 level of significant. 2. The creative thinking of twelfth-grade students after learning using model-based learning were statistically significantly higher than the 70-percent criterion at the .05 level of significant. 3. The constructing scientific model ability of twelfth-grade students after learning using model-based learning were significantly higher than the traditional instruction at the .05 level of significant. 4. The constructing scientific model ability of twelfth-grade students after learning using model-based learning were statistically significantly higher than the 70-percent criterion at the .05 level of significant.