在教学中您可以从多项式乘法开始



确定知识的连接点

教科书中某一章的知识始终处于与其他知识相关联且彼此独立的教科书系统中。

1。我们应该从部分和整体开始,在系统中找到新知识和旧知识之间的链接,为了阐明知识的来龙去脉以及知识点在教科书中的位置和作用。每个知识点都有一个发生和发展的过程。例如七年级的“平方差公式”,通过分析,当多项式乘以多项式时会发生这种情况。给他们机会看看思考的机会,说机会,练习的机会,创新的机会。正是由于负数的引入,将学生从小学的“非负数”过渡到有理数,然后介绍数字轴的概念, 相反的数字 绝对值等等。不难看出负数的概念是七年级数学知识的连接点。 确定目标知识点

在分析教材的过程中, 教师根据教学大纲的要求和教材的内容, 找到实施要求的目标点,这样,选择达到标准所需的方法很有帮助,有助于教师明确主要和关键内容。因此,在教学中您可以从多项式乘法开始,给出一个精心设计的问题集,由学生计算,然后引导观察,总结平方差公式,说明功能,然后做运动对学生的素质培训有了很大的提高。例如“一元二次方程”一章,目标点是一个变量中二次方程的解,根的判别式根与系数之间的关系,一维二次方程应用程序和可以转换为一维二次方程的方程(组),among them,solution, discriminant, relationship between roots and coefficients, order reduction, elimination and transformation ideas are the key points.

fourth, find the foothold of knowledge

find your footing,can make teaching targeted,with a clear purpose.such as the section "solving quadratic equations in one variable",based on the matching method,this is not just about matching methods to make the derivation of root-seeking formulas a reality,and,because it is an important mathematical method,play an important role in further study.different textbook content,the footing is also different,finding the right foothold in teaching can achieve the optimization of the effect.

5. identify the differentiation points of knowledge

has some content,this is the point,but students' learning is not easy to master,and then affect the learning of subsequent knowledge,this part of the content is called the point of differentiation.therefore, teachers should find the differentiation point of knowledge,highlight these points of differentiation in teaching,in order to reduce the polarization of students.such as the concept of absolute value,list equations to solve applied problems, etc.ignore these points of differentiation,there will be a chain reaction,difficulties occur,produce differentiation.

six, find the training points of knowledge

in teaching,to choose some suitable topics,focus on training topics that reflect basic concepts, basic methods, and laws,overcome the practice of increasing extracurricular questions.basic concepts, basic methods, and basic laws are training points.in training,how to make full use of variant questions,design training sequence,grasp the degree and amount of training,it should also be taken seriously.

in teaching,grasp these key points,the teacher's guidance is precise, accurate, flexible, and ingenious,students are happy, active and relaxed in learning,in addition, the teaching method is selected appropriately.it will certainly have a gratifying effect on the improvement of students' overall mathematics quality.

source: 233 online school thesis center,author: kou yanmei

。实践证明,学生对这一概念的掌握程度如何,它与有理数的运算和整数的学习有关。 提高学生素质,这是当今时代赋予教师的神圣使命,在探索和探索提高学生素质的方法的过程中,我逐渐意识到,如果我想真正提高学生的素质,首先,教师必须有高度的责任感,深入研究大纲和教材,优化教学过程,掌握新知识的新纽带,掌握教科书中的要点,指导精度 准确性, 技巧和灵活性,省时高效只有这样,学生的时间才能归还给他们。例如七年级数学中的负数概念,应该在七年级数学的整个教学过程中进行分析,它不限于对这一知识点的孤立分析,它忽略了他在学生知识形成中的重要作用。教师应遵守教学要求,确定知识发生的点。在教室里根据过程提出适当的问题。使学生的思维与知识的发生和发展同步,事半功倍,您可以获得两倍的结果,用一块石头做更多的事。

2。分析教科书时,您不能集中精力对教科书进行部分和特定的分析。

3。 确定知识的出现点

数学教科书是根据一定的知识体系编排的,每章的知识是相互联系的

责编:佚名       2020-11-22 23:22
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