论文部分内容阅读
具有熟练正确的计算能力是数学教学目标之一,培养小学生正确计算能力离不开算理的正确理解、算法的熟练掌握。《2011版数学课程标准》内容中指出“运算能力主要是指能够根据法则和运算定律正确进行运算的能力,培养运算能力有助于学生理解运算的算理,寻求合理简洁的运算途径解决问题。”由此可见,加强计算教学,优化计算的策略在于理清算理,熟练算法。下面以异分数加减法的教学为
Have a skilled and correct computing power is one of the goals of mathematics teaching, training students can not do without the correct computing power of the correct understanding of the algorithm master. “2011 edition of mathematics curriculum standards,” the content states that “computing power mainly refers to the ability to operate correctly according to the law of law and the law of operations, training ability to help students understand the computing algorithm to find a reasonable and concise way to solve the problem computing . ”Thus, to strengthen the calculation of teaching, optimization calculation is to sort out the arithmetic, proficiency algorithm. The following difference plus addition and subtraction teaching