“数学是思维的体操,问题是思维的核心。”学生探究的积极性、主动性往往起源于良好的问题情境,因此精心创设问题情境对于课堂上实施有效的学习活动能起到积极的推动作用。那么创设有效的问题情境的途径有那些呢?一、利用童话或故事创设问题情境小学生都爱听故事、看动画片,教师在教学中根据小学生的年龄特征和心里特点,把所学的知识融入生动活泼的故事情境中,通过故事激趣、多媒体展现情境,能充分激发学生的学习兴趣和求知欲望,使枯燥的学习变得轻松愉快,把学生的认知过程、情感过程、意志表现有机地统一于教学过程中。如在教学《用“替换”的策略解决问题》时,把曹冲称象的故事引入课堂,通过故事设疑:当时魏国的大臣们想了许多称象的办法,一个个都行不通,一个年仅六岁的曹冲却想出称象的办法。同学们你们想知道曹冲是用什么办法称出大象的体重吗?教师因势利导,鼓励学生大胆地猜想。 “Mathematics is the gymnastics of thinking, the problem is the core of thinking. ” Students explore the enthusiasm, initiative often originated in a good problem situations, so careful creation of problem situations for the implementation of effective learning activities in the classroom can play a positive role in promoting effect. So what are the ways to create effective problem situations? First, the use of fairy tales or stories to create problems Situational pupils love to listen to stories and watch cartoons, teachers in the teaching of pupils in accordance with the age characteristics and characteristics of the heart, the learned knowledge into In the lively and vivid story situations, through the story of interest, multi-media to show the situation, can fully stimulate students’ interest in learning and desire for knowledge, so that boring learning becomes relaxed and happy, the students cognitive process, emotional process, will organically Unify in the teaching process. When teaching “replace” with “teaching strategy” to solve the problem, the story of Cao Chong was introduced into the classroom and the story was set up as suspicion. At that time, the ministers of the State of Weigui thought of many ways of weighing out one by one and would not work A year-old Cao Chong came up with a method of weighing. Students do you want to know Cao Chong is the method used to weigh elephants do? Teachers make the best use, encourage students to boldly guess.