Abstract:
The purpose of this research were to study a development of learning achievement and problem solving ability of grade 10 students using 7E teaching method with KWDL technique. The target groups were 49 of grade 10 students in the second semester of academic year 2015 at Chonradsadornumrung School, Muang District, Chonburi Province. The research design was an action research. The research instruments consist of 5 lesson plans, the learning achievement test, the problem solving ability test and the cycle posttest. The data were analyzed by growth scores, mean, standard deviation and percentage. The research findings were as follows: 1. The learning achievement on Stoichiometry using the 7E teaching method with KWDL technique possessed average growth scores of 53.93% which was rated at a high level with the highest score of 74.83% in understanding, 56.81% in applying, 54.12% in remembering, 51.02% in synthesizing, 40.82% in evaluating and 40.74% in analyzing. 2. The problem solving on Stoichiometry using the 7E teaching method with KWDL technique possessed growth scores higher than those before learning with the average of 59.09% which was rated at a high level with the highest score of 62.50% in step K (Know), 61.99% in step D (Did), 50.61% in step L (Learned) and 48.76% in step W (Want).