Lesson 2 Maths in English
Period 1
Learning objectives
1．To talk about the mathematic symbols
2．To express sums in English
3．To learn the new words and the text
Important and difficult points
1．To work out the maths problem in English
2．To express sums in English
Learning Process
I. Warming up
Daily talk
II. Revision
Quick response
III. Presentation
Tuning in
加号: Plus
A+B = C
①A plus B equals C.
②A and B is / equals C.
③Add B to A, you get C.
减号：Minus
A-B = C
①A minus B equals C.
②B subtract from A is /equals C.
③B from A is C.
乘以：Times / multiplied by
A×B = C
①A times B is /equals C.
②Multiply B by A is C.
③A multiplied by B is C.
除以：Divided by
A÷B = C
①A divided by B is C.
②Divide A by B is C.
③B into A is C.
III. Practice on the text
(1) Look at the phrase on the slide and guess the meaning of them.
two times faster than how fast
How far in half an hour
(2)Twice her brother John’s age.
(3)Let’s listen to the tape and do some maths exercises.
a) Listen to the first sum and ask some questions.
b) Listen to the second sum and tell me how to get the answer.
1) Listen to the tape again and then try to answer the questions on Page.
2) Read the text and act out the text.
3) Retell the text.
IV. Consolidation
Divide the student into ten groups and ask them to play 24 points.
Lesson 2 Maths in English
Period 2
Learning objectives
1．To have more practice on the sum
2．To finish reading & writing
3．To learn the phonetics
4．To check the exercises on workbook
Important and difficult points
1．To have more practice on the sum
2．To learn the phonetics
Learning Process
I. Warming up
Daily talk
II. Revision
To play 24 points in groups
III. Reading and Writing
(1) Introducing the most famous mathematicians in the world.
本文主人公的全名为Carl Friedrich Gauss卡尔·弗雷德里希·高斯.
Carl Friedrich Gauss was a German. He was born on April 30th,1777. He was a child prodigy (神童) in maths. He was not only the greatest mathematician (数学家),but also one of the greatest physicists (物理学家) and astronomers (天文学家) of his time. He was also very good at languages, such as English, French, Russian and Danish. And he kept his diary (记日记) in Latin (拉丁语). He died in his sleep at the age of 77on February 23rd, 1885.
(2) Language points
1) Some were writing. Others were reading. Still others were chatting.有些学生在写东西,另外一些学生在阅读,还有一些学生在聊天.
注意some→ others→ still others的用法.（有的……有的……还有的……）
e.g. Class One is having a PE class in the playground. Some are doing waist bends. Others are doing leg lifts. Still others are doing jumping jacks.
2) Their maths teacher wanted to keep them quiet and busy.他们的数学老师想让他们保持安静不闲着.
注意keep+名次或代词+形容词的用法，又如：
We must keep our classroom clean.
Hobbies keep some people busy all the time.
3) Soon Carl got the answer, and put up his hand. 卡尔很快算出答案并举手.
put up举起；张贴；建造 又如：
Please put up your hands first. Then answer my questions.
They are putting up a new classroom building.
1) What a clever boy you are! =How clever the boy is!
Writing
Check on the exercises
Lesson 2 Maths in English
Period 3
Learning objectives
1．To have more practice on the sum
2．To know the language points
3．To finish discovering language & developing skill
Important and difficult points
1．To have more practice on the sum
2．To know the language points
Learning Process
I. Warming up
Daily talk
II. Revision
1) Quick response on maths
2) Dictation
3) Check the recitation
III. Learn the language points
1) times表示倍数是可数名词
once一次，twice 两次，three times 三次
two times faster than 比…快两倍
2) add (up) vt.&vi. (常与to 连用)加；加起来；做加法
If you add 4 to 3, you get 7. 4加3等于7。
Add up these numbers, please.请把这些数字加起来.
When did you learn to add? 你什么时候学会做加法的?
3）subtract vt.&vi. (常与from连用)减去；扣除；做减法
If you subtract 3 from 5, you get 2. 5减3得2。
When did you learn to subtract? 你什么时候学会做减法的?
4）multiply vt.&vi. (常与by连用)乘；使相乘；做乘法
If you multiply 3 by 5, you get 15. 3乘 5等于15。
9 multiplied by 9 is 81. 9乘9等于81。
When did you learn to multiply? 你什么时候学会做乘法的?
5）divide vt.&vi. 除，(被)除尽
If you divide 8 by 2, you get 4. 以2除8得4。
20 divided by 5 is 4. 20除以5等于4。
When did you learn to divide? 你什么时候学会做除法的?
6）Sentence patterns:
Twelve plus fifteen equals twenty-seven.*
Twenty-five minus seven equals eighteen.*
Thirty-three times three equals ninety-nine.*
Eighty-one divided by nine equals nine.*
7）Additional notes to the text
加、减、乘、除算式的不同读法如下：
15+8=23 fifteen plus eight equals twenty-three.
Fifteen and eight is twenty-three.
18-6=12 eighteen minus six equals twelve.
Six from eighteen is twelve.
4×9=36 four multiplied by nine equals thirty-six.
Four times nine is thirty-six.
32÷4=8 Thirty-two divided by four equals eight.
Four into thirty-two is eight.
8) How clever you all are!
how常可跟形容词和副词构成感叹句。
e.g.
①How convenient the traffic is now! (形容词作系动词的表语)
②How fast he’s running! （副词修饰行为动词）
What 常可跟形容词+名词构成感叹句。
e.g. What an interesting TV programme it is!
What bad news the poor man has got!
IV. Discovering language and developing skills.
1) Look at the discovering by yourselves and find the rules.
2) Look at the model and try to write down what you hear on the tape.
3) Try to talk about the sum as the model.
