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第三单元数学学习要点

(2010-12-05 13:58:04)
标签:

杂谈

Module 1 Unit 3 Session 1: Counting from 10 to 20

教学目标:

熟知数词1120的表达方式,在孩子们能够完全掌握的基础上,可以渗透数词的拼写。

Pearl 珍珠  bubble 泡泡  seahorse 海岸,海边  shining jewels 闪亮亮的珠宝  colorful fish 五彩缤纷的鱼儿

10 and 1 more is called 11.  10111

10 and 2 more is called 12.  10212

10 and 3 more is called 13.  10313

10 and 4 more is called 14.  10414

10 and 5 more is called 15.  10515

10 and 6 more is called 16.  10616

10 and 7 more is called 17.  10717

10 and 8 more is called 18.  10818

10 and 9 more is called 19.  10919

10 and 10 more is called 20.  101020

Caterpillars 毛毛虫   toy animals 动物玩具  butterflies 蝴蝶  turtles    pineapples 菠萝  tomatoes西红柿

13 toy animals on these shelves.  架子上有13个动物玩具。

14 butterflies in these frames.  格子里有14只蝴蝶。

17 pineapples in these frames.  格子里有17个菠萝。

There are 18 tomatoes all together.  一共有18个西红柿。

参考用书:page 91-92

 

 Module 1 Unit 3 Session 2: Counting from 20 to 50

教学目标:熟知数词2050的表达方式,在孩子们能够完全掌握的基础上,可以渗透数词的拼写。

We need put suitcases on the plane. 我们需要把这些行李箱运到飞机上。

How many suitcases are stacking here?  这有多少行李啊?

Click on this switch to start the machine. 按这个按钮来启动机器。

20 and one more is the number 21.  201的是21

20 and two more is the number 22.  202的是22

20 and three more is the number 23.  203的是23

20 and four more is the number 24.  204的是24

20 and five more is the number 25.  205的是25

20 and six more is the number 26.  206的是26

20 and seven more is the number 27.  207的是27

20 and eight more is the number 28.   208的是28

20 and nine more is the number 29.   209的是29

20 and ten is the number 30.  2010的是30

blocks 木块,积木  passengers 乘客,过客,行人

One block shows one passenger/suitcase. 一块积木可以表示一位乘客/一个行李箱。

30/40 and one more is the number 31/41.  30/401的是31/41

30/40 and two more is the number 32/42.  30/402的是32/42

30/40 and three more is the number 33/43.  30/403的是33/43

30/40 and four more is the number 34/44.  30/404的是34/44

30/40 and five more is the number 35/45.  30/405的是35/45

30/40 and six more is the number 36/46.  30/406的是36/46

30/40 and seven more is the number 37/47.  30/407的是37/47

30/40 and eight more is the number 38/48.  30/408的是38/48

30/40 and nine more is the number 39/49.  30/409的是39/49

30/40 and ten more is the number 40/50.  30/4010的是40/50

参考用书: page 93-94

 

Module 1 Unit 3 Session 3: Counting from 50 to 100

教学目标:熟知数词50100的表达方式,在孩子们能够完全掌握的基础上,可以渗透数词的拼写。

This machine is for counting pennies.  这是台数硬币的机器。

Tube(s) 管子

There are ___ pennies altogether in the machine.  机器里有__个硬币。

5 full tubes of pennies hold 50 pennies. 5个管子里一共有50个硬币。

One more than 49 is 50. 491的是50

6 full tubes of pennies hold 60 pennies. 6个管子里一共有60个硬币。

One more than 59 is 60. 591的是60

7 full tubes of pennies hold 70 pennies. 7个管子里一共有70个硬币。

One more than 69 is 70. 691的是70

8 full tubes of pennies hold 80 pennies. 8个管子里一共有80个硬币。

One more than 79 is 80.  791的是80

9 full tubes of pennies hold 90 pennies. 9个管子里一共有90个硬币。

One more than 89 is 90.  891的是90

10 full tubes of pennies hold 100 pennies.  10个管子里一共有100个硬币。

One more than 99 is 100.  991的是100

This machine can help you to count 100 pennies. 这台机器可以帮你数100枚硬币。

74 candies in this jar  罐子里有74颗糖

What is the word name of this number?  这个数字是几?

70 and 4 more is the number 74.  70474

This is the word name seventy-four. 这是数字74的英文写法。

80 ping-pong balls in this box  盒子里有80只乒乓球

3 ping-pong balls in this box  盒子里有3个乒乓球

Which number shows 80 and 3 more?  哪个数字是803组成的?

80 and 3 more is the number 83.  803的是83

This is the word name eighty-three. 这是数字83的英文写法。

In which order do these numbers come after 96?  96后面是哪些数字?

The order of the missing numbers is 97, 98, 99, and 100.  依次序,这些数字是97, 98, 99100

One more than 96 is 97. 961的是97

One more than 97 is 98. 971的是98

One more than 98 is 99. 981的是99

One more than 99 is 100. 991的是100

skyscraper 摩天大楼  windows 窗户  lights 灯(复数)  handle 把手 roll 卷,把卷成桶状

There are 7 windows lit in this roll. 7扇窗户是被点亮的。

There are 67 windows lit in this skyscraper.  这栋摩天大楼有67户是点亮的。

参考用书:page 95-96

 

Module 1 Unit 3 Session 4: Skip-counting by Tens and Fives

教学目标:认知数字50-100,在认知的基础上,掌握50-100的英文名字,并能灵活运用到生活中。

pineapple 菠萝  crate 板条箱,装货箱 

use one block to show one pineapple  一块积木可以表示1个菠萝

use ten blocks to show ten pineapples  10块积木可以表示10个菠萝

ten more blocks to show ten more pineapples

count by 10’s 10为单位来数数

There are 10 blocks in each roll. 每一行有10个积木。

Delicious pineapple juice  美味的菠萝汁

handle 把手

5 bottles of pineapple juice in a box 盒子里有5瓶菠萝汁

5 blocks to show 5 bottles of juice  5块积木可以表示5瓶果汁

5 more blocks to show 5 more bottles of juice

10 blocks to show 10 bottles of juice altogether  10块积木可以表示10瓶果汁

Counting by 5’s, there are 5, 10, 15, 20, 25, 30, 35 blocks.  5为单位来数数,有5块,10块,15块,20块,25块,30块,35块积木。

There are 10 butterflies in each roll.  每一行有10只蝴蝶

How many butterflies are there altogether?  一共有多少只蝴蝶?

Count by 10’s  10为单位来数数

There are 40 butterflies altogether.  一共有40只蝴蝶

There are 5 eggs in each nest.  每个鸟巢里有5只蛋

Count by 5’s.  5为单位来数数

The lollipops in these boxes are packed in rolls of 10. 盒子里的棒棒糖是以一行为10个来摆放的。

Which of these boxes has 40 lollipops?  哪个盒子里有40根棒棒糖?

paintbrushes 画笔,漆刷,画刷   pot 壶,罐  number chart 数字表格 count by 10’s 10为单位来数数  count by 5’s 5为单位来数数

There are 10 paintbrushes in this pot.  罐子里有10支画笔

And there are 10 paintbrushes in each of these pots. 每个罐子里各有10支画笔

How many paintbrushes are there altogether? 一共有多少支画笔?

1 pot has 10 paintbrushes.   一个罐子里有10支画笔

2 pots have 20 paintbrushes. 两个罐子里有20支画笔

3 pots have 30 paintbrushes. 三个罐子里有30支画笔

4 pots have 40 paintbrushes. 四个罐子里有40支画笔

5 pots have 50 paintbrushes. 五个罐子里有50支画笔

参考用书: page 97-98

 

Module 1 Unit 3 Session 5: Skip-counting by Twos

教学目标:1. 2为单位,从2数到30

          2.学习30以内的偶数

          3. 2为单位,从1数到29

          4. 学习30以内的奇数

How many bags of laundry are there? 有多少袋衣物?

There are 2 bags of laundry. 有两袋衣物

2 blocks to show 2 laundry bags 两块积木可以表示两袋衣物

2 more bags of laundry 多于两袋衣物

two socks = a pair of socks  两只袜子就等于一双袜子

count by 2’s 2为单位来数数

2 and every other number after 2 are called even numbers. 2为基准,2后面的每隔一个数称之为偶数。

2,4,6,8,10,12,14,16,18,20,22,24,26,28,30 are even numbers. 这些数字是偶数

1 sock in the basket 篮子里有1只袜子

9 blocks show there are 9 socks in the basket altogether. 九块积木可以表示篮子里有9只袜子

Starting at 1, and counting by 2, every other number after 1 is called odd number. 1开始,以2为单位开始数数,每隔一个数称之为奇数。

So 1,3,5,7,9,11,13,15,17,19,21,23,25,27,29 are called odd numbers.这些数字都是奇数

One more than any odd number is an even number. 比任何一个奇数大一的数是偶数。

One more than any even number is an odd number. 比任何一个偶数大一的数十奇数。

How many gloves are there?  有多少双手套?

There are 12 gloves.  12双手套

Counting by 2’s, there are 2, 4,6,8,10,12 gloves.  2为单位来数数,有2, 4,6,8,10,12双手套

How many knives and forks are there?  有多少把小刀和叉子?

There are 26 knives and forks.  26把小刀和叉子

Counting by 2’s, there are 2,4,6,8,10,12,14,16,18,20,22,24,26 knives and forks.  2为单位来数数,有2,4,6,8,10,12,14,16,18,20,22,24,26副刀叉。

Which tray has an even number of drinks? 哪个托盘有偶数杯饮料?

Starting at 2 and counting by 2’s, 2 and every other number is an even number. 2开始,以2为单位来数,每隔一个数称之为偶数。

How many flowers are there?  有多少朵花?

There are 15 flowers.  15朵花

Starting at 1, and counting by 2’s, 1 and every other number is an odd number. 1开头,以2为单位数数,每隔一个数称为奇数。

1, 3, 5,7,9,11,13,15,17,19 are odd numbers. 这些数字是奇数

Which rack has an odd number of hats? 哪个架子上有奇数顶帽子?

This rack has an odd number of hats. 这个架子上有奇数顶帽子

How many shoes are on the shelf altogether? 鞋架上一共有多少双鞋?

There are 16 shoes on the shelf.  架子上有16只鞋

There are 2 shoes in each pair.  每双鞋有两只

So there are 2, 4, 6,8,10,12,14,16 shoes on this shelf. 所以架子上有2, 4, 6,8,10,12,14,16只鞋

How many shoes are on this shelf? 架子上有多少双鞋?

Not all of those shoes are in pairs. 不是所有的鞋都是成双的

Let’s count these shoes one by one. 让我们一起来数数这些鞋

There are 15 shoes on this shelf. 架子上有15只鞋

Which shelf has an even number of shoes? 哪个架子上有偶数只鞋?

16 is an even number. 16是偶数

This is an even number of bowling shoes on this shelf. 架子上有偶数只保龄鞋

参考用书: page 99-100

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