Period 3 Section B (1a～1e)
Teaching important points 【教学重点】
1.Key words & phrases：
ten，eleven，twelve，thirteen，fifteen，eighteen，twenty，thirty
2.Key sentences：
How much is the white bag?
It's seventeen dollars.
Teaching difficult points 【教学难点】
Be able to speak and write the numbers correctly.
Teaching aids 【教具】
CAI，a tape player，cards，pictures
Teaching procedures and ways 【教学过程及方法】
★Step Ⅰ Revision and lead－in 复习导入
T：Good morning，boys and girls.Here are some telephone numbers.Who can help me read it？(Show a telephone number 235－4683.)
S1：It's two three five four six eight three.
T：Good，how about this one？13573615638?
S2：It's one three five seven three six one five six three eight.
T：Well done，how about these？$23，$18，$35…
Ss：I don't know.
T：OK，these are some price tags and today we will learn how to read and write them together.Are you ready?
Ss：Yes.
T：OK，here we go!
★Step Ⅱ Self－studying and guiding 自学指导
Self－study 1：
Self－study the new words：ten，eleven，twelve，thirteen，fifteen，eighteen，twenty，thirty.
Learn to pronounce them according to the phonetic symbols.You can listen to the tapes to help you pronounce them correctly or ask others for help.
Self－study 2：
Self－study the numbers in Part 1b and find out which rows of numbers are in the wrong places.
Questions for thinking：
(1)Can you find out some rules about the writing of these numbers?
(2)How to write these price tags?
$15 $23 $11 $20 $30
The teacher walks around the classroom to watch and help the students study while the students are self－studying.Encourage students to find out their problems in self－studying both in pronunciation and understanding.
