Lesson 26 Keep the Candle Burning教案公开课一等奖

Lesson 26: Keep the Candle Burning 沧州市南皮县王寺中学

李奥林

1. Analysis of the Students: The students of Grade 9 have mastered certain vocabularies，expressions and structures. They also have the abilities of self-teaching and working in groups. Most of them are willing to express their opinions in English. 2. Analysis of Teaching Content: Lesson26 is the second lesson in Unit5.This unit focus on the subject look into science, and also teach the students something about science. Students care about the subject because it is close to everyone. Lesson26 mainly talks about learn to do an experiment. 【Teaching aims】

Knowledge aims: 1. To master the words: match, light, burn, candle holder, shallow, oxygen, use up, one-fifth. 2. To master the expressions: do an experiment, fill…with,

cover…with,

turn…upside down, be (not) sure…

Ability aims:

Describe and explain the experiment in English by themselves in this lesson. Improve the students’ ability of speaking, listening, reading and writing.

Emotional aim:

Students can enjoy the pleasure of literature. 【Teaching key and difficult points】

Key point：Grasp and mastery words and patterns. Then know the usage of ＂use up＂,＂one fifth＂and so on. Difficult point：Describe the experiment in English. 【Teaching aids】

PPT

radio Teaching Procedures

Step 1：Warming up

T: Do you like doing science experiment? Why or why or not?

S1: Yes, it’s so interesting/ funny. S2: I can get more knowledge from the experiment. …. There are some things that may be used in an experiment. Do you want to know what will happen？What will happen if we put a jar upside down over a burning candle? Today we’ll learn Lesson 26：Keep the Candle Burning. （Aim:

To warm up and elicit the topic.

Arouse students’interests in this lesson.）

Step 2：Presentation

1.Learn the new words Look at PPT and learn the new words with teacher. Read after the teacher and then let the students clap their hands and say the words.(Divide students into 6 groups and clap in the group.) Now let’s do the experiment. (Aim: To learn the new words through looking at the pictures and clapping their hands.)

2.Watch，Say and Fill (1)What do we need? We need a candle，a candle holder，a big glass jar，a shallow dish，some water and a lighter. (2)What do we do? Listen to the tape and fill in the blanks. First，________ the candle ________ the candle holder. Then ________ the candle holder ________ the dish. Third ________ the dish ________ water. Fourth，________ the candle. Fifth，________ the candle ________ for two minutes. Sixth, Carefully

________ the jar

________

the candle until the top of the jar rests ( 剩余）

on the dish. Seventh, ________ the water in the jar. (Aim: Improve students’ability

in listening for

specific

information.)

(3)Look at the pictures and state the steps of the experiment. [来源:学科网ZXXK]

Read themselves in the group in 3 minutes. Time’s over. Then let the students state steps according to the picture. 3.Imagine and Predict If I put the jar over the candle until the top of the jar rests on the dish，what will happen? I’m not sure./I’m sure it will...

I think... Maybe... 4.Do，Observe and Answer Put the jar over the candle carefully until the top of the jar rests on the dish. (The candle stops burning. The water rises up.)

(Aim: stating the steps of the experiment according the motion graphs.) Step 3：Listen，read and think

1. Why did the candle stop burning? Because it has ________ the oxygen in the air.(used up) 2. Why did the water rise? Because the force outside the jar is ________ than the force inside the jar.(stronger) 3.How far did the water rise?

Because there is about ________ oxygen in the jar，so the water rises and fills about ________ of the

jar.(one fifth，one fifth) (Aim: Listen and think about the conclusion of the experiment and reason. Mobilize the spirit of active exploration of students) Step 4：Language points Explain the key phrases and fraction, and then do exercises on fraction. keep... burning 使……燃烧。keep sth.(sb.)doing使某物(某人)保持做某一动作状态。

be made up of

由...组成

use up

用光, 耗尽。表示完全，彻底。

.one fifth五分之一。

分数的表达：

分数由分子及分母两部分构成。用英语表达时，分子用基数形式，分母用序数词形式。若分子为1时，则分母的序数词为单数形式；若分子大于1时，则分母的序数词用复数形式。

[来源学科网ZXX K][来源学科网]如：

1/2

a half ;

1/3，one third，三分之一；

3/4，three fourths，四分之三

(Aim: To learn the key phrases, fraction and know how to use them.) Step5: Project (Let’s speak English)

(5 minutes)

1. Do the experiment in groups. Describe the steps and the conclusion of the experiment in English. Read about the experiment of this lesson. With a group of classmates，practice the experiment. Do your experiment in front of the class. Don’t forget the following things：

First，describe your experiment. Second，ask the class what they think will happen. Third，do the experiment. Finally，ask the class if the result is what they expected. (Aim: Encourage the students to use English to talk about the experiment and express their ideas. Through cooperation, students can be trained to use language knowledge comprehensively for communication.) Step 6：Consolidation Do Exercises 2 on Page 69 (Aim:

To practice and use what they have learned.)

Step 7:Summary

New words:

match\matches\lighter\candle\candleholder\burn\shallow\oxygen\examine New phrases:

Keep…burning\use up \use it up\one fifth\be made up of Grammar:分数表达法

: 分子基，分母序，分子>1,分母+s. (Aim: To make the students to put what they have learned to use.) Step 8: Homework 1. Write the experiment that you have learned in this unit.

2. Do our exercise book Lesson 26. T: Class is over. Goodbye! Blackboard design:

Lesson 26: Keep the Candle Burning 1.burn 燃烧

keep the candle burning 2.be made up of

由…组成

5.one fifth 五分之一

3. use up 用光，用尽

6.push up

提高；增加

4.fill…with…

用…装满

Teaching reflection(教学反思):

本节课我觉得较为成功，环节完整，条理清晰，过渡自然，重点突出，按计划完成了教学任务，本节课的教学目标达成较好。在课堂上我充分利用PPT，能最大限度地调动学生的学习积极性，让学生动起来。使他们能够集中注意力去感受新知。在课堂活动设计上，我遵循了“听说领先，读写跟上”的原则。在突出听和说的同时，跟上练习，帮助学生学练结合。学生们能在活动中积极参与，通过自读，合作讨论，表演等方式掌握本课所学知识。在小组合作中，培养学生实际运用语言的能力和交际能力。

但本课也有一些不足之处：对时间的掌控还需要继续磨练，给学生展示的机会没有做到面面俱到。课堂氛围不够轻松，应该再鼓励学生放松并更加积极活跃一些。今后我将不断学习，努力提高自己的教学水平。