This knowledge point is an important part of power operation in junior high school mathematics. By studying the exponential power of negative integers, students can further understand the concept of exponent, master the operation properties and laws of exponential power of rational numbers, and lay a foundation for further learning power operation, exponential equation, logarithm and other knowledge.

Negative integer exponential power is also one of the commonly used mathematical models to solve practical problems, which can help students improve their mathematical application ability and ability to solve practical problems.