Unit 5 Look into Science-Lesson 25 Let’s Do an Experiment!-ppt课件-(含教案+视频+素材)-省级公开课-冀教版九年级全一册英语(编号：a0292).zip

单位：保定市列电中学单位：保定市列电中学教材：冀教版九年级英语教材：冀教版九年级英语课题：课题：Lesson25 Look into ScienceUnit 51. To read and understand the dialogue2. To learn to do the experiment by yourselves3. To write down a report with some useful words and expressions: correct, method, force, experiment, pour, scientific, pressure, conclude, turnupside down, pourout, scientific method, takeoffObjectives.Leading-in （情（情 境境 导导 入）入）（友情提示：师友交流各抒己见（友情提示：师友交流各抒己见 ） Lesson 25 Lets Do an Experiment!In which subject do you often do experiments? krekt knklu()n santfkmedkspermnt In Physics or Chemistry classes, we can get correct conclusions by using scientific methods. Doing experiment is a scientific method. 1. Where does Danny think they should do the experiment?2. What keeps the water in the jar?3. Is Jenny sure of her theory? How do you know?4. What does Danny conclude?1. Danny thinks that they should do the experiment outside.2. The force of the air./The air pressure.3. Yes, she is. She is so sure of her theory that Brian can do the experiment overDannys head and he wont get wet.4. Air is stronger than he thought.Read the lesson and answer the questions.（友情提示：师友（友情提示：师友先先独立完成，独立完成，再再互助交流。互助交流。 ）II. Introduction （实（实 验验 准准 备备 ）Materials:right side upupside downjarcardboardwater kdbd d psadIII.Procedure （实（实 验验 过过 程程 ）What will happen?LookLook andand guess.guess.The water will pour out.The water will stay in the jar.or Turn the jar upside down. Cover the top with a piece of cardboard and hold it there. Take hand off the cardboard. Fill a jar with water.2134Read the experiment. Put the sentences in the correct order.（友情提示：师友（友情提示：师友先先独立完成，独立完成，再再互助交流。互助交流。 ）Lets do the experiment!（友情提示：学生说，老师做。（友情提示：学生说，老师做。 ）（友情提示：学生说，学生做。（友情提示：学生说，学生做。 ）.Conclusion （实（实 验验 结结 论）论）1.The force of the air keeps the water in the jar.2. We discovered that the air pressure helps the cardboard hold the water in the jar.3. We conclude that air is stronger than we thought.What do you learn from this experiment?. Summary&Extension（总（总 结结 提提 高）高）The Scientific Method WorksheetName: _Material: _Procedure(过程过程): 1. Fill a jar with water. 2. Cover the top with a piece of cardboard and hold it there.3.Turn the jar upside down.4.Take hand off the cardboard.Results：Conclusions: _The force of the air / The air pressurea jar, a piece of cardboard, some waterThe water stays in the jar.The force of the air keeps the water in the jar.Experiment ReportToday we do an experiment about. In this experiment, we use. At first,Second, Then,At last,At the end, we find.So, we conclude that.WhatWhat willwill happenhappen whenwhen youyou useuse lessless water,water, moremore water,water, wetwet cardboard,cardboard, oror differentdifferent kindskinds andand sizessizes ofof jars.jars.保定市列电中学保定市列电中学刘倩刘倩教学设计教学设计课题名称：课题名称：Lesson 25 Lets Do an Experiment!姓名：姓名：工作单位：工作单位：学科年级：学科年级： 九年级教材版本：教材版本：冀教版一、教学内容分析一、教学内容分析 In unit 5, we talk about science. This is the first lesson of the unit. It expresses the scientific way of learning. This lesson is a basic of the unit.二、教学目标二、教学目标1. To write down a report with some useful words and expressions: correct, method, force, experiment, pour, scientific, pressure, conclude, turnupside down, pourout, scientific method, takeoff2. Improve the abilities of listening, speaking, reading and writing. 3. Arouse students interest in learning and awareness of cooperation.三、学习者特征分析三、学习者特征分析 Students have learned English for about 2.5 years in middle school. Some of them can express themselves in English fluently. Parts of them have taken great interests and all of them have great space to improve.四、教学策略选择与设计四、教学策略选择与设计1. Teaching methods(1) “Task-based” teaching method (2) Audio-visual teaching method2. Learning method (1) Cooperative learning method五、教学重点及难点五、教学重点及难点1. Understand new words and expressions.2. Use the new words and expressions fluently while doing the experiment and writing the experiment report by themselves.六、教学过程六、教学过程教师活动教师活动预设学生活动预设学生活动设计意图设计意图Use a question to lead in the topicAnswer the question that in which subject you often do experiments?Activate students related background knowledge.Introduce the experiment1. Learn the new words in context. 2. Check the material of todays experiment.Have an understanding about todays experiment.Lead the procedure of the experiment1. Look a short video and guess the end of the experiment.2. Read the passage with a task.3. Lets do the experiment.Help students understand the passage and train their abilities of listening, reading and speaking.Pay more attention to students language output.1. Students do the experiment by themselves in groups.2. They speak out the steps of the experiment while doing it.3. Then, they share at the front.Train students abilities of speaking and writing.Teacher lead students to summarize what they have learned from the passage. 1. Students summarize what theyve learned.2. Write a Science Report Guide the pupils to sum up the experience, methods and knowledge they have got and write down a science report.七、教学评价设计七、教学评价设计 1. What have you grasped in this class? 2. What do you think of your partner and yourself ? ( Great , Good , Not bad ) 3. Which group is the best group in this class?八、板书设计八、板书设计Experiment ReportToday we do an experiment about. In this experiment, we use. At first,Second, Then,At last,At the end, we find.So, we conclude that.九、实践反思九、实践反思可以从如下角度进行反思（不必面面俱到，不少于 200 字）：After this lesson, I thought a lot. Every teacher wants to have an effective class. I think an effective class comes from 4 parts, learning by doing, teaching by doing, layered teaching and various evaluation mechanisms. In my lesson, I emphasized the first three points. Students learned by doing and I taught by doing. I also divided students and tasks into layers and choose the best group according to their behavior in class. But the evaluation mechanisms were still not well used in this lesson. So, in my future teaching, I will pay more attention to my application of evaluation mechanisms and try to bring competition into class to perfect the layered teaching.