《古典概型》第一课时这节课首先通过模拟试验让学生感悟、理解古典概型的特征,观察类比试验和例题,归纳总结出计算公式,体现了化归的重要思想。案例渗透了数形结合、分类讨论、列举法等数学思想和方法。根据新课程标准,结合学生心理发展的需求以及情感、态度、价值观的具体要求制订而成,充分发挥了学生的主体作用。这对激发学生学好数学概念、养成数学习惯、感受数学思想、提高数学能力起到了积极的作用,较好地落实了三维教学目标。 During the first lesson of “Classical Probability”, this lesson firstly makes students feel through the simulation experiment, understand the characteristics of classical conception, observe analogical experiments and examples, summarize the formula and reflect the important idea of ​​returning to normal. The case infiltrates mathematical ideas and methods such as the combination of number and form, classification, enumeration and so on. According to the new curriculum standards, combined with the students’ psychological development needs and emotions, attitudes and values ​​of the specific requirements formulated from, give full play to the student’s main role. This has stimulated students to learn mathematical concepts, develop mathematical habits, feel mathematical ideas, improve math ability has played a positive role, and better implement the three-dimensional teaching objectives.