历史教学的实践告诉我们,历史知识错综复杂,既缺乏学科内容的主题统摄,又缺乏知识的内在逻辑。内容庞杂,头绪纷繁,给我们历史教学带来了一定的难度。然而,细究历史学科的构建思路,历史知识既有纵向的脉络联系,又有横向的关联,纵横交错,构成了既复杂又统一的历史整体。因此,只有切实地把握住历史教学中的一纵二横,才能帮助学生把握住历史 The practice of history teaching tells us that historical knowledge is complex and complex, lacking the subject’s content, and lacking the internal logic of knowledge. The content is complex and complicated, which brings certain difficulties to our history teaching. However, when it comes to the construction of historical disciplines, historical knowledge has both vertical contextual connections, horizontal cross-cutting, and criss-crossing, forming a complex and unified historical whole. Therefore, only grasping one vertical and two horizontal lines in history teaching can help students grasp the history.