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犤研究背景犦让学生在数学学习中感受从具体到形式的抽象过程，是现代小学数学课程改革所强调的重要理念。我们选择了“有余数的除法”这个内容，进行了三次实践、两次反思的全过程课例研究：结合三次课堂实践的是两次反思：反思已有经验行为与新理念新经验的差距；反思新理念?
犤 research background 犦 let students in mathematics learning experience from the concrete to the form of the abstract process is an important concept of modern primary school mathematics curriculum reform emphasized. We have chosen the content of division with remainder and carried out the whole process of three times practice and twice reflection. Case study: combining three times of classroom practice is two times of reflection: reflecting the gap between the existing experience and the new concept of new experience; Reflect the new concept?