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1案例素材苏教版数学选修2-3第10页第11题:“以正方形的4个顶点中某一点为起点,另一个顶点为终点作向量,可以作出多少个不同的向量”(上面的是“问题”的简记.下同.)2案例背景这道题是学生刚刚学完两个计数原理后的一道作业题,也可以看成苏教版数学必修4第60页第5题的后续题.必
1 Case material Sujian version math elective 2-3 Page 10 Page 11 Question 11: “How many different vectors can be made using one of the four vertices of the square as a starting point and the other vertex as the ending point” (above Is a short note of “problem.” The same below.) 2 Case Background This question is the student just finished two work after counting a work assignment, can also be regarded as the Supian math compulsory 4 第 60 页 第 5 题Follow-up questions