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集体备课之我见集体备课之我见
开展集体备课的初衷是发挥集体的智慧，促进教师群体的共同进步，共同发展。
集体备课通常锁定同一个年级的教师进行，大家就教学中遇到的问题或即将教学的内容的独特理解或设想展开讨论，集体备课。
集体备课的时间为每周一次，保证教学问题的及时反馈，及时交流，及时处理，避免因时间间隔太长，导致教学疑难问题积累，得不到及时有效的澄清和明确。
每次集体备课确定一名主备教师，由主备教师带领同轨教师先回顾本周已学内容，厘清教学困惑，提出共性问题，以供大家讨论，再预习下周即将学习内容，理解教材规定的教学目标、教学重难点及处理方法，将每位教师平时独自完成的工作在集体内讨论过滤一遍。
通过集体备课，常常能收获到意想不到的惊喜。那种智慧绝非单打独斗式的自由备课所能比拟。
例如本周我们集体备课的主题是《列方程解决稍复杂的百分数实际问题》，在交流教学过程的时候，主备老师就结合实例使我们体会到了教师教学导语的重要。我们一致认为，教学本课内容，可以先出示例5的情景图，组织学生读题、理解题意，再列式解答。由于五下已经学过百分数的实际问题的算术解法，所以学生可能会出现两种解法，且以算术解法居多，如此一来，就不能突出本课教学目标。怎样才能达成本课教学目标，并在两种解法中予以突出呢？这就是一个关系到这节课整个走向的重要问题。此时，教师的正确引导可能就决定着学生的思考方向。
教师可以先指导学生根据已知条件“女生人数是男生的80%”找单位“1”的量。因为男生是单位“1”，所以可以先画一条线段表示男生人数，再画一条线段表示女生人数，最后在线段图中补充出所有已知条件和所求问题。那么怎样表示男生和女生人数呢？学生联系到用字母表示数的数学学习经历，自然而然想到用x表示男生人数，再用80%x表示女生人数，则列方程解决例5，也就水到渠成，呼之欲出了！
在学生完成列方程解答例5的全部过程以后，再引导学生想一想：例5除了可以列方程解答以外，还有没有其他解法？如此教学过程，不仅实现了算法多样化，更实现了算法最优化，算法目标化。
我们在独立备课时，在各自实践教学设计时，常遇到这样那样的问题，单凭个人努力较难解决，此时，我们不妨先把这些问题记录在脑中或纸上，再向同轨的其他教师请教，使自己成为集体备课这一常规教学制度的真正受益者和最大受益者，这可能才是我们对待集体备课的正确而有效的态度。
既然已有集体备课，我们则应充分利用集体智慧，充实自己，成就自己。如此好事，一举多得，又有何不善加利用之理？
学习了
集体备课其实强调是一种课前的预设。那能不能在第二周集体备课时，把上周教学活动中生成的新问题再来讨论讨论呢？
谢谢！
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