Usually used in class, more formal and concise. Chapter I Proof (II) (Curriculum) 1. Can you prove it? Lesson 2. Right triangle 2 lesson 3. Lesson 4 perpendicular bisector of Line 2. Angular bisector Can you prove it? (A) teaching objectives: knowledge and skills objectives: 1. Understand the contents of several axioms as the basis of proof. 2. Master the basic steps and writing format of proof. Process and method 1. Go through the process of "exploration-discovery-guess-proof". 2. The related property theorem of equilateral triangle can be proved by synthesis method. Emotional attitude values 1. Enlighten and guide students to experience the conclusion of exploration and proof, that is, the dialectical relationship between reasonable reasoning and deductive reasoning. 2. Cultivate students' good study habits of cooperation, communication and independent thinking. Key points, difficulties and keys 1. Focus: Explore the ideas and methods of proof. The problem can be proved by comprehensive method. 2. Difficulties: the ideas and methods to prove the problem. 3. Focus: Combining with actual cases, use comprehensive analysis method to find proof ideas.