进入新课程改革,中学化学课程标准及教材与原先理念和教材体系发生了巨大的变化。在教学实践中发现,学生在刚刚进入高一化学课程学习中,由于初高化学的脱节、高一教材难度的提高、学习方法转变,对高中化学的学习感到困难。如何做好初高中化学衔接、提高化学教学有效性一直是困扰师生的难题。 Enter the new curriculum reform, chemistry curriculum standards and teaching materials in secondary schools with the original concept and textbook system has undergone tremendous changes. In teaching practice, students found that just entering the high school chemistry course, the students were struggling to learn chemistry in high school due to the disconnection of the high school chemistry, the difficulty of high school textbooks and the change of learning methods. How to make chemistry connection in primary and secondary schools and improve the effectiveness of chemistry teaching has always been a puzzle for teachers and students.