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课标要求能用所学的内容解决一些简单的、实际的问题,说明我们在教学中要淡化对特殊技巧的要求,重视学生对基本方法和基本算理的掌握,促进学生对数学的理解和数学的运用能力的发展!学完了解一元二次方程我们就要达到灵活选择方法解方程,学完三角形全等或相似要能选准方法对全等或相似做出正确的判定.当我们的空间与图形的学习内容结束之后,线段长度的求解方法就有必要总结一番.期望在线段长度计算时能快速的选择最合理的解
Curriculum requirements can be used to solve some of the simple, practical problems, that we should play down the teaching of special skills requirements, emphasis on students grasp of basic methods and basic calculations to promote students’ understanding of mathematics and Mathematical ability to use development! Learning to understand the quadratic equation of a dollar we have to achieve flexible choice of methods to solve the equation, completed triangle congruent or similar to be able to choose the right method to determine the congruence or similarity to make the right decision .When our After the learning content of space and graph is over, it is necessary to summarize the method of solving the length of line segment.It is expected that the most reasonable solution can be quickly selected when the length of line segment is calculated