1、本网站免费注册后即可以下载，点击开通VIP会员可无限免费下载！
2、资料一般为word或PPT文档。建议使用IE9以上浏览器或360、谷歌、火狐浏览器浏览本站。
3、有任何下载问题，请联系微信客服。
扫描下方二维码，添加微信客服
二年级下册（2013年10月第1版）《4、练习三》最新教案优质课下载
S: 10 ones make 10.
T: Count by 10s.
S: Ten tens are 1 hundred.
T: Count from 498 to 502 by 1s.
S: ...
T: Count from 380 to 410 by 10s.
S: ...
T: Count from 500 to 1,000 by 100s.
S: ...
Step 2. Presentation.
Look, count and write.
T: What number is this?
S: one hundred and twenty-six
T: 126 is made up of ( ) hundred, ( ) tens and ( ) ones.
S：1 means 1 hundred. 2 means 2 tens. 6 means 6 ones.
T: Look! There are no beads in the tens column. So we write 0.
304 is made up of ( ) hundreds and ( ) ones.
S: ...
T: Judge.
1. We read 456 as four five six.（ ）
2. We write three hundred and 9 as 390.（ ）
3. 3 hundreds and 6 tens make 306.（ ）
4. 620 is made up of 6 hundreds and 2 ones.（ ）
5. The smallest 3-digit number is 100.（ ）
6. 389 goes before 400.（ ）