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对照《数学新课程标准》和2000年版的《数学教学大纲》,我们不难发现,新课标对笔算内容的复杂性和熟练程度要求降低了,减少了整数四则混合运算的复杂性。降低了数的整除等一系列内容的要求,但唯独没有降低口算教学的要求。反而在第一、二学段都明确提出:应重视口算、加强估算,提倡算法的多样化。可见口算在数学学科中的重要地位。口算是计算能力的基础,直接制约着笔算、估算和简便计算能力的发展。研究表明,口算是包含了运算思维的高级
In contrast to the New Math Curriculum Standard and the 2000 edition of the Mathematics Syllabus, it is not hard to see that the requirements of complexity and proficiency of the new curriculums have been reduced, reducing the complexity of the four mixed arithmetic operations. Reduce the number of divisions and other requirements of a series of content, but alone did not reduce the requirements of oral education. Instead, it is clearly stated in the first and second sessions that the emphasis should be on port counting, the estimation should be strengthened to promote the diversification of algorithms. Visible mouth count in mathematics important position. Mouth calculation is the basis of computing power, a direct constraint on the pen calculation, estimation and easy calculation of the development of capacity. Studies have shown that port arithmetic is a high level that contains computational thinking