贴纸本Sticker book

• 

  说一说钱币的价值Saying money values

  4.1.2

• 

  换一换钱币Exchanging money

  4.1.3

• 

  解决钱币问题Money problems

  4.3.1

学会一课，就能得到一张贴纸!Master a Lesson to earn a Sticker!