矩阵乘法比较复杂,给教与学带来一定困难,我在反复的教学实践中,觉得以下几点作法效果较好。一、通过实例引入矩阵乘法效果好。矩阵乘法是根据线性变换乘积的需要而提出的。在线性变换概念还没讲的情况下直接给出矩阵乘法学员很难接受,为解决此难点,我是通过学员实践中所共有的例子引入的,学员接受的效果较好。例1.某工厂生产三种产品,销往四个地区,第一季度的销量如上表,销价如下表: Matrix multiplication is more complex, teaching and learning to bring some difficulties, I repeated teaching practice, I feel the following practices better. First, through the introduction of matrix multiplication effect is good. Matrix multiplication is based on the need of a linear transformation product. It is hard to accept that the matrix multiplication trainees are not accepted directly under the notion of the linear transformation. To solve this difficulty, I introduced it through the common examples in the trainees’ practice, and the trainees accepted better. Example 1. A factory produces three products and sells in four regions. The sales volumes in the first quarter are as shown in the table below. The selling prices are as follows: