二分法教案及教案说明（Dichotomy teaching plans and lesson plans）.docVIP

二分法教案及教案说明（Dichotomy teaching plans and lesson plans） Topic: the approximate solution for the 3.1.2 equation Tancheng, Linyi, Shandong, America and Australia school Yang Ming Teaching target: Knowledge and skills -- through the concept of specific examples to understand dichotomy and applicable conditions, understand the dichotomy is the equation approximation method used, will use specific dichotomy to solve the approximate solution of the equation, experience between function and equation of contact and its application in practical problems in experience program to solve the problem of ideology. The approximate solution -- use a calculator for dichotomy equation for the process and methods, to enable students to fully experience the approximation method, approximation idea and program to deal with the problem of thinking and its significance, and preparing for the learning algorithm for the next step. Emotions, attitudes, values - through inquiry, experience, presentation and communication, develop good learning qualities and enhance awareness of cooperation. By understanding the process of mathematical approximation, we feel the relative unity of precision and approximation Teaching emphasis: Key point: by using dichotomy to find the approximate solution of the equation, we can understand the relation between the zero point of the function and the root of the equation, and initially form the consciousness of dealing with the problem with the function view Difficulty -- the proper use of information technology tools, and the use of dichotomy to find the approximate solution of an equation of a given degree of accuracy Teaching methods: Problem guided learning and mathematical inquiry: the principles and steps of guiding students to explore the dichotomy through the problems, and the teaching method based on the interaction between teachers and students. And supplemented by multimedia teaching methods to create problem scenarios, students based on questions. Teachi