论文部分内容阅读
简便计算是“数的运算”中基本内容之一。《义务教育数学课程标准》(2011年版)在“数与代数”版块的具体目标中有“探索和理解运算律,能应用运算律进行一些简便计算”的要求。因此,简便计算是数学教学中一个不可或缺的内容,简算方法的掌握和灵活运用不仅能提高计算速度和运算能力,对培养学生思维的灵活性与创造性、提高学生解决问题的能力等方面都具有重要意义。但在实际教学中,错综复杂的简算“病症”折射出简便计算教学
Easy calculation is one of the basic things in “Number of Operations ”. The Compulsory Education Math Curriculum Standard (2011 Edition) has the requirement “to explore and understand the law of operations, and to apply some laws of computation for some simple calculations” within the specific goals of the “Algebra and Algebra” section. Therefore, the simple calculation is an indispensable part of mathematics teaching. The mastery and flexible application of the simple calculation method not only can improve the computing speed and computing ability, but also have some effects on cultivating students ’flexibility and creativity in thinking and improving students’ ability to solve problems All have important meaning. However, in the actual teaching, the intricacies of simple calculation “illness ” reflects the simple calculation of teaching