整数指数幂

1

操作水平组的学生在对原型进行扩展时会感到更加困难，特别是面对负整数指数幂和分数指数幂的情况。

At the former level , students feel it more difficult in the extension of the prototype , especially the exponent with the form ax when x is a negative integer or a fraction .
2

结合定性分析，最后得到以下几个结论：（1）高中生对幂的掌握程度良好。错误率最高，难度最突出的是负整数指数幂。

From both quantitative and qualitative analysis , the following conclusions can be drawn : ( 1 ) High school students have a good command of the concept of exponent . For them , the most difficult part is the power of negative integer exponent .