Unit 6 I have fifty markers. Lesson 22（课件+素材）北京版英语三年级上册

Unit 6 I have fifty markers. 北京版三年级上册 Lesson 22 We learned collections in this unit. We learned the addition and subtraction of numbers. Let’s review. My collections May I borrow your glue, please? Let’s review Certainly. Here you are. Thank you. Let’s review You are welcome. May I borrow your markers, please? Let’s review Here you are. I collect markers. I have fifty markers. Thank you. You have so many erasers. Let’s review Yes. I have sixty. I collect rulers. I have forty. Let’s review What do you collect, Guoguo? You have so many toy cars. Let’s review Yes. I collect them. I have twenty. I have ten. Let’s review Let’s put them together. Twenty plus ten is thirty. Look at the numbers on the blackboard: 50, 60, ____, ____, 90. Who can guess the missing numbers? Let’s review It’s easy. Fifty plus ten is sixty. So the missing numbers are seventy and eighty. One hundred minus ten is ninety. Let’s review Ninety minus ten is eighty. So the missing numbers are eighty and seventy. Well done! Learn the sounds That noisy boy has many toys. Learn the sounds The toys give him great joy. Learn the sounds oi oil coin join boil noisy /ɔɪ/ Learn the sounds oy boy toy joy /ɔɪ/ Learn the sounds Listen and tick Listen and tick 1.—What do you collect?  —I collect stickers. I have fifty. 2.—May I borrow your eraser?  —Certainly. I collect erasers.  I have sixteen. Look and say 20+30= Twenty plus thirty is fifty. Look and say 40+50= Forty plus fifty is ninety. Look and say 70-10= Seventy minus ten is sixty. Look and say 80-60= Eighty minus sixty is twenty. Let’s write pencils rulers erasers markers books crayons 1. I have twenty ______ . 2. I have thirty ______ . 3. I have forty ______ . x10 x10 x10 crayons erasers rulers Let’s write pencils rulers erasers markers books crayons 4. I