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在课堂教学中,教师课堂拓展要给予学生充足的时间和空间,让学生自主探究,从而使学生的思维真正活起来,有利于学生举一反三,触类旁通,学会多角度思考问题。教学拓展是一门教学技术,更是一门教学艺术,只有正确使用,才可以让课堂充满生机,洋溢着智慧的火花。特级教师许卫兵在教学“鸡兔同笼”一课时,对课堂进行有效的拓展,努力寻找数学课广度与深度之间的联系,让课堂精彩生成,使得数学课
In the classroom teaching, teachers should give students enough time and space to expand their classrooms, so that students can explore themselves, so that students can really think of life, help students make inferences, by analogy, learn to think from multiple angles. Teaching and development is a teaching technique. It is a teaching art. Only by using it correctly can we make the classroom full of vigor and full of wisdom sparks. Supervisor Xu Weibing in the teaching “chicken with rabbit cage ” class, the effective expansion of the classroom, and strive to find the connection between the breadth and depth of math class, so that the wonderful classroom, making math class