The purpose of this research is to study the learning achievement of science of grade 2. Our local soil, teaching by using computer PBL.Using problem based learning to improve the instruction PBL by creating Mind mapping เพื่อนั students to achievement of Science On soil increases.Mind Mapping is one way to help learners to practice the skills to summarize reading. Because it is the students learn together and important. Students can take the right knowledge to use in daily life.Lesson plans to use the problem solving skills in learning patterns and วัดผลสัมฤทธิ์ PBL test of learning science. The local land.2 semester academic year 2557 1 school field house finishing less Nong Chan Science District, Ubon Ratchathani province of 16. The sampling. Start the test class pre - Test), then carried out experiments.(post - Test) with the achievement test set immediately. Then the achievement to the data were analyzed to determine the average percentage, and the analyzed results.The results indicated that the study achievement. The learning of science of Science in grade 2 about local soil. Group learning using problem solving skills.PBL from test 2 times found that students taught by conventional method. The average school - after learning of 8.And 37 8.75 respectively. Use concept mapping achievement on soil average before school - after school only with 6.87, and 8.37 respectively, which shows. Students progress in higher learning. Use concept mapping teaching model and the conventional
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