“分数的基本性质”是一条理性思维成分很强的数学规律。本节课通过一系列的活动让学生置身于规则发生、发展、形成的生动过程,教者始终扮演“组织者、引导者与合作者”的角色,层层设疑,学生的思考逐步深入。引导他们亲历观察、猜想、验证、建模、应用等数学活动,进而获得一种更有力度、充满张力的数学思考以及触及心灵的精神愉悦,使数学思维得到一定的训练提升,获得更为丰富的数学活动经验,在“好吃”中享用“有用”的数学。 “The basic nature of the score ” is a mathematical law with strong rational thinking. Through a series of activities, this lesson exposes students to the vivid process of occurrence, development and formation of rules. Teachers always play the role of “organizer, leader and collaborator” In-depth. Guide them through mathematical activities such as observation, conjecture, verification, modeling, application and so on, so as to obtain a more vigorous and full of tension in mathematical thinking as well as spiritual pleasure touching the mind so that the mathematical thinking can be trained and enriched and enriched Experience in math activities, enjoy “useful ” math in “delicious ”.