weight
Weight
Today we learned about weight.
Weight
Professor is a post office worker.
Q: What's this place?
A: It's a post office.
This is a package.
It's a pan balance.
Q: How much does the yellow package weigh?
A: It weighs __________ blocks.
Q: How much does the purple package weigh?
A: It weighs __________ blocks.
It's a spring balance.
Q: How much does the yellow package weigh?
A: It weighs __________ blocks.
Q: How much does the green package weigh?
A: It weighs __________ blocks.
Q: Which package is the heaviest?
A: The __________ one is the heaviest because it weighs more than other packages.
Q: Which fruit do you think is heavier?
A: The pineapple weighs 4 blocks. The coconut weighs 5 blocks. 5 is greater than 4, so the __________ is heavier than the __________.
Q: Which chinchilla is heavier?
A: The left one weighs 6 blocks. The right one weighs 5 blocks. 6 is greater than 5, so the __________ one is heavier.
Q: Which sack is the heaviest?
A: 8 is greater than all the other numbers, so the __________ one is the heaviest.
Q: Which sack is the lightest?
A: 5 is less than all the other numbers, so the __________ one is the lightest.
本课教学目标：
1.继续学习使用非标准单位（Nonstandard units）来对比物体的重量，例如使用blocks；
2.能够懂得不同的测量工具（pan balance托盘天平/ spring balance弹簧秤），并明白如何进行测量物体重量；
3.能够懂得按照物体重量对物体进行排序，培养孩子的逻辑思维；
4.能够通过课件学习积累部分常见词汇，例如post office, package, weight, pan balance, heavy, light。
本课作业
1. 根据文档和语音链接进行复习；
2.完成下发的作业纸。
★ 3. 下节课会从以下表格中听写5个单词。