一、引言课堂导入是教师在进入新课时运用特定的教学方式来引起学生的注意,激发他们的学习兴趣,使他们明确学习目标,形成学习动机和建立知识间联系的一类教学行为。但在平时的课堂教学中有些教师干脆省去这一重要环节直接进入主题。另外不少教师在设计热身活动时只注重了活动的趣味性和学生的主体性,却忽视了活动的有效性,从而导致热身活动流于形式。那么怎样在设计课堂导入的热身活动时做到趣味性和有效性的兼顾和统一呢?本文就如何通过设计趣味有效的热身来优化课堂导入这一环节做一些粗浅的探究。 I. INTRODUCTION The introduction of classroom is a kind of teaching behavior that teachers use special teaching methods to arouse the students' attention when they enter a new class, stimulate their interest in learning, make them learn the target clearly, form the motivation of learning and establish the connection of knowledge. However, in normal classroom teaching, some teachers simply save this important part of the direct access to the topic. In addition, many teachers in the design warm-up activities only focus on the activities of the fun and the students' subjectivity, but neglected the effectiveness of the activities, leading to warm-up activities in mere formality. So how to achieve the harmony and unification of fun and effectiveness when designing the warm-up activities in the classroom? This article does some superficial exploration on how to optimize the classroom introduction by designing interesting and effective warm-up.