学生用书第32,33页

大声朗读数学故事2-3遍

背关键词，词组，下堂课默写

Read the math story aloud.

记住以下关键词，词组，下堂课默写

Key Words and phrases:

expanded form

sea level

gigantic

Gateway Arch

Washington Monument

on our way to...

it took me... to ...

36 feet wide

big  (原级）bigger （比较级）biggest（最高级）

drive （原形）drove (过去式）driven（过去分词）