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So scienceTrained teachers in area studies across the country more than 144 people, which is the main resource group learning math, science. The teacher merit like yam pram, school phiriyalai, piriyalai Phrae province.To solve the problem of learning. Teaching mathematics since junior high. The past, we find that teachers often focus on the content. Because I knew that the content is what students should know very much. Regardless of the thought process
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