Analysis of academic situation: Students learn that integer divided by decimal and integer divided by integer are decimals. All the students understand that as long as the decimal points of quotient and dividend are aligned. The textbook creates a "telephone" situation to let students understand the problems that need to be solved in fractional division with divisor as decimal, and experience the close relationship between mathematics and life.

Learning objective: 1. Through the situation of "making a phone call", I realize that there are problems in life that need to be solved by dividing the divisor into decimals, and further understand that mathematics is closely related to life.

2. Using the existing knowledge, I have experienced the process of exploring the decimal division formula and realized the mathematical thought of transformation.

3. Correctly master the calculation method of fractional division bill and solve the practical problems of relevant departments.

Learning focus: master the calculation method of division with divisor as decimal.

Difficulties in learning: understanding and application of division operation with divisor as decimal.

Study preparation: understand the telephone situation in life.