2. Process and method: Under the guidance and teaching of teachers, students master two mathematical methods of studying functions from different angles through review, summary and analogy in the atmosphere of group cooperation and active exploration, that is, studying function properties from function images and studying function images from analytic functions, so as to deepen their understanding of function concepts and methods of studying functions.
3. Emotion, attitude and values: let students feel the beauty and importance of mathematical thinking methods in mathematical activities; At the same time, through the study of this course, students can obtain the laws and methods of research function; Cultivate students' awareness of active learning, cooperation and communication.
Focus on making students master the concept, image and properties of quadratic function; Familiar with the methods of studying function properties and images from different angles.
The difficulty is to analyze and infer the image of quadratic function with the help of the analytical formula of quadratic function and the study of function properties with formula.