theproblemofthesnakes教案.doc

人教版普通高中课程标准实验教科书高二选修8 Unit3 Reading The problem of the snakes Warming Up Reading 临川一中 曹娟 Teaching Goals: 1. To learn about the difference between a discovery and an invention. 2.To arouse Ss’ interest in learning about the stages of an invention. 3.To develop Ss’ some basic reading skills. 4.To develop Ss’ ability to discover and solve the problems and cultivate Ss’ creativity and imagination. Teaching Procedures: Step 1. Warming Up Purpose: To arouse Ss’ interest in learning about the difference between a discovery and an invention. 1. Get Ss t to guess what the invention is or who the inventor is in groups. Question 1: It’s made of plastics and metal. It looks like a big box. The invention helps us keep our clothes clean and lighten our work. Suggested Answer:Washing machine. Question 2: The inventor is from America. He is one of the father of inventions. The inventor invented the bulb. Suggested Answer: Edison 2. Get Ss to tell as many the inventions they know as possible in groups. 3. Ask Ss to look at the pictures on P19 and answer the following questions. (1) Which of the pictures is an invention? (2) Which of the pictures is a discovery? 4. Get Ss to discuss the difference between the inventions and a discovery and give a definition of them and give some examples of each category. Suggested Answer: An invention is something produced for the first time through the use of imagination or ingenious thinking and experimentation. A discovery merely makes known something that already exists in nature. A good sentence example: My father discovered my mother in the crowd and invented me later. Step 2. Pre-reading Purpose : To get Ss to be aware of the connection between inventing and the scientific process. 1. Let Ss work in pairs and decided what the first and most important stage is to make an invention. 2. Ask Ss to finish the exercise of Pre-reading on P19 and then check the answer in pairs. Key: 1 Finding a problem 2 Doing research 3 Th