小学生在体育课学习新动作时,大脑皮质的兴奋过程容易扩散,不易集中,表现为动作不协调,僵硬、缺乏控制能力,甚至产生一些多余动作或错误动作。如投掷垒球时,会出现推垒球、直臂或体侧投垒球等错误动作。那么,在投掷教学中如何预防和纠正错误动作呢? 一、讲解要生动形象,示范动作要准确优美。教师的语言是传递知识和影响学生的重要手段,语言的表达能力直接影响教学效果。在教投掷垒球时,教师可用“蹬地转体成满弓,挥臂扣腕快如风”这一富于情趣的语言表述来揭示教材的结构和内在的规律性,激发学生对投掷练习的兴趣和掌握正确的动作要领。准确优美的示范动作,能起着讲解难以达到 Pupils in the new lessons learned in physical education, the process of excitement of the cerebral cortex easily spread, not easy to concentrate, showing uncoordinated movements, stiff, lack of control, and even produce some unnecessary or wrong moves. Such as throwing softball, there will be push softball, straight arm or side of the baseball and other erroneous action. So, throwing teaching how to prevent and correct the wrong move? First, to explain to a vivid image, the model must be accurate and beautiful. Teachers' language is an important means to transmit knowledge and influence students. The ability of language expression directly affects the teaching effect. When teaching softball throwing, teachers can use “full of bow into the turn, swing arm and wrist fast wind,” the full of fun language expression to reveal the structure and inherent discipline of teaching materials, to stimulate students to throwing practice Interest and master the correct action essentials. Accurate and beautiful demonstration of action, can play a difficult to achieve