S1：Length
Length
Today we learned about length.
Q: Which of these buildings is the tallest?
A: The _________ one is the tallest.
Q: Which of these snakes is the shortest?
A: The _________ one is the shortest.
Q: How long is the train? Count the number of blocks.
A: The train is _________ blocks long.
Q: How many pencils are the same length as the table? Count the number of pencils.
A: _________ pencils are the same length as the table.
Q: What’s the height of the cactus in inches.
A: The height of the cactus is __________ inches.
Q: Which snail is longer? How long is it?
A: The __________ one is longer. It’s __________ centimeters long.
Q: Which of these bonsai trees is the tallest?
A: The one on the left/ in the middle/ on the right is the tallest.
Q: How long is the bonsai tree?
A: The bonsai tree is _________ inches long.
【Thinking Time】：（自己量一量以下物体的长度或高度进行回答，用inch或centimeter均可）
Q: What’s the length of your table?
Q: What’s the height of your door?
Q: How long is your ruler?
本课教学目标：
1.理解什么是length，如何测量长度，用什么工具测量；
2.了解实际物体的长度。
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. 下节课会听写以下7个单词（长单词的听写会进行音节拆分）。