政治教师要教好课，就要做到“五勤”。1．脑勤。对于正处在改革之中而不断变动的教材，对于国内、国际社会纷繁复杂的社会现象，尤其是一些重大的政治、经济、军事、文化等现象，政治教师要勤于和善于动脑筋加以分析和研究。分析、研究的前提是解放思想，分析、研究的关键是实 If political teachers want to teach well, they must achieve “five diligence.” 1. Brain work. For textbooks that are constantly changing under the reform, political teachers must be diligent and good at using their brains to analyze the complicated social phenomena in the domestic and international community, especially the major political, economic, military, and cultural phenomena. And research. The premise of analysis and research is to emancipate the mind, and the key to analysis and research is