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计算是小学数学中十分重要的学习内容之一,现实生活中时时处处也都离不开计算,学生计算能力的高低,直接影响今后初中和高中物理和化学的学习。关于学生的计算能力,数学课程标准明确指出:培养学生的数感,理解运算的意义,选择恰当的运算策略和技巧,重视口算,加强估算,提倡算法多样化。造成错误的原因,提高计算能力的策略。
Computation is one of the most important learning contents in elementary mathematics. In real life, computation can not be separated from time to time. Calculation of students’ ability directly affects the study of physics and chemistry of junior and senior middle schools in the future. On the students ’computing abilities, the standard of mathematics curriculum clearly states: training students’ sense of number, understanding the meaning of operation, choosing appropriate operation strategies and skills, emphasizing port counting, strengthening estimation and promoting algorithm diversification. Causes of errors, strategies to improve computing power.