“实践是检验认识正确与否的惟一标准”这一观点在高二《思想政治》第八课中既是教学重点，又是教学难点。许多学生对实践作为检验认识的标准深信不疑，但对“惟一”二字却有疑惑。学生曾这样提问：“科学理论（包括定律、定理）是否也可作为检验某种认识正确与否的标准？如果 “Practice is the only criterion to test the correctness of understanding” is not only the teaching focus but also the teaching difficulty in the eighth “Ideology and Politics” of the second year. Many students are convinced of practice as a criterion for testing knowledge, but they are confused about the word “only.” Students have asked questions like this: “Do scientific theories (including laws and theorems) also serve as a criterion for testing the correctness of certain understandings?