四 双曲线(国外英文资料).doc

四 双曲线(国外英文资料) Data worth having From the usual study, accumulation and summary Where there is a problem, there must be some Please also criticize and correct me! Four hyperbola Section 2.11 and the standard hyperbolic equation I. teaching objectives (1) knowledge teaching points Enable students to master hyperbolic definitions and standard equations And the derivation of standard equations (two) capacity training points Knowledge of hyperbolic curves in analogy with ellipses In order to train students ability of analysis, induction and reasoning (three) discipline penetration point; Pay attention to the role of analogy and imagination in this class Make analogies and assumptions with ellipses The students are given a deeper understanding of the definition of hyperbolic curves and the standard equations Two, teaching material analysis 1. Emphasis: hyperbolic definition and hyperbolic standard equation (solution: by a simple experiment, the hyperbola is obtained Through the definition given the questions for understanding the hyperbolic; hyperbolic equation by standard) 2, difficulty: deduction of hyperbolic standard equation (solution: guide students to complete Reminding students to draw analogies with elliptic standard equations 3, doubt: hyperbolic equation is the two function relationship? (solution: the teacher can solve the problem by guiding the student to remember the function, define and observe the hyperbolic graph At the same time let students study outside of what additional conditions Hyperbolic equations can be transformed into functions Three, activity design The experimental questions, and summarized definition, explanation, Yanban, answer, highlight, summary Four, teaching process (I) review questions 1. What is the definition of ellipse? (student answers, teachers blackboard writing) The locus of the point in the plane and the distance between the two points F1 and F2 is equal to the constant (greater than |F1F2|), called the ellipse The teacher sho