探索三角形全等的条件 - 阳光学习网(国外英文资料).doc

探索三角形全等的条件 - 阳光学习网(国外英文资料)When I read, I would like to stay in front of every good thought, just like staying in front of every truth. - EmersonExplore the condition of congruent triangles (second hours)Beijing Normal University edition textbook for seven grade testWenchang Hainan overseas Chinese middle school Ye MinThe teaching goal1, knowledge and skills(1) explore the condition of triangle congruent ASA and AAS.(2) skilled use of ASA and AAS to determine whether the two triangles are congruent and their use in everyday life. Develop students ability to communicate well.2, ability target(1) cultivate students ability to practice, explore, observe, analyze and sum up their mathematical conclusions.(2) to cultivate students ability to transform and acquire knowledge independently and to solve problems.3, emotions, attitudes and valuesThrough a variety of means of activity process, let students hands-on, stimulate students interest in learning, and through cooperation and communication to solve problems, realize the application of mathematics in real life, and enhance students self-confidence.The emphasis and difficulty of teachingFocus on the triangle congruent conditions ASA and AAS, and can use them to determine whether the triangle is congruent.Difficulty in exploring the condition and application of triangle congruent condition ASA and AAS.The guiding learning methodBy drawing, observing, comparing, reasoning and communicating, the students gradually master the distinguishing conditions of the triangle.The teaching aids(1) prepare a triangular plate, a protractor, a ruler(2) multimedia coursewareCourseware conception: through the practice of hands-on practice, experience the triangular discriminant conditions.Material preparation: pictures of the twenty-ninth Olympic Games in 2008, pictures of broken glass, demonstration of triangular congruent pictures.The teaching design1, situational introduction(projection play: 2008 twenty-ninth International Olympic Games