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在口算教学中,我们常常将重点放在口算算法的掌握上,力求熟练掌握口算方法,达到一定的口算准确度和速度,以培养学生基本的计算能力,而对口算算理的教学就相对弱化。《义务教育数学课程标准》指出:“计算教学既要让学生在直观中理解算理,也要让学生掌握抽象的算法,更需要让学生充分体验由直观算理到抽象算法的过度和演变过程。”由此可见,在口算的课堂教学中教师不仅要让学生知道正确的口算方法,更要让学生了解方法的原理,在
In the oral arithmetic, we often focus on the mastery of the arithmetic of arithmetic, and strive to master the arithmetic of arithmetic, reach a certain degree of accuracy and speed, in order to cultivate the students’ basic computing ability, while the calculation of arithmetic is relatively weakened . The Standard of Compulsory Education Mathematics Curriculum states: “Computation teaching requires that students not only understand arithmetic in an intuitive manner, but also enable students to master abstract algorithms. Students in a more comprehensive way need to experience the transition from intuitionistic to abstract algorithms Process. ”Thus, in the mouth of the classroom teaching teachers not only to let students know the correct method of calculation, but also to enable students to understand the principle of the method, in