Buoyant force is not only the base of hydrostatics which has many applications, but also the key point of physics teaching in the middle school.

“浮力”是流体静力学中应用性较强的基础知识之一，也是初中物理教学的重要内容。

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Thirdly, in accordance with the present situation of biology teaching in the middle school, it raised the procedure and the methods of the creation of teaching situation.

其次，阐述了创设教学情境的理论基础，即：心理学理论和建构主义学习理论；

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It makes great efforts for the better popularization and application of this organizational form of teaching instruction - cooperative study in the mathematics teaching in the middle school.

努力为合作学习这种教学组织形式在中学数学教学中得到更好的推广和运用。

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Her father switched from teaching middle-school Spanish to running a fish store in the Portland suburb of Clackamas, where her mother had a business producing couture dresses.

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