Teaching Aim: 1.Introduce the history of coins. Enable the students to get a general knowledge of coins: the earliest coins in the world,. the material used for coins, the information on the coins. 2.To talk about the discoveries of coins in England and Australia. 3.To learn some words and phrases: be of +n. /collection/ hide/ material, etc. 4.To talk about the development of coins in students’ own words. 5.To discuss the advantage and disadvantage of the credit card uses at present, the development of money in the future.