这次九年义务教育小学数学教学大纲和教材的修改，把被乘数和乘数统称为乘数 (或因数 )，这是对传统乘法教学的一项革新。乘法算式各部分名称的改变，实质是对传统乘法教学理念的适当调整。我们应很好理解这样改革的必要性和可行性，正确处理改革后乘法概念的教学方法，以及 The nine-year compulsory primary school mathematics teaching syllabus and textbook modification, the multiplicand and multiplier referred to as a multiplier (or factor), which is an innovation of the traditional multiplication teaching. Multiplication formula changes the name of each part, in essence, the traditional multiplication teaching philosophy of the appropriate adjustments. We should have a good understanding of the necessity and feasibility of such a reform, the correct handling of the teaching of the concept of multiplication after the reform, and