RAZ分级阅读 · RAZ J级
Number Twelve
Number Twelve Is Everywhere! We use the number twelve to help us do things every day. It helps us to count things, measure length, and tell time.
Did you ever wonder why a year has twelve months? A ruler has twelve inches? A clock has twelve hours?
How We Learned to Count Long ago, people needed an easy way to count things. How many goats did they have? How many bricks did they need?
They didn't have pencils, but they always had their fingers. How could their fingers help them count things?
Your hand has four fingers and one thumb. Fingers bend into three parts. All of your finger parts add up to-twelve!
