We know that 18 yuan can buy three bowls, and now we want to know how many identical bowls 30 yuan can buy.

In order to solve this problem, we must first establish a mathematical model.

Suppose the price of each bowl is X yuan.

According to the topic, we can get the following equation:

18 yuan buys three bowls, so the total price of three bowls is 3×x= 18 yuan.

We want to know how many identical bowls 30 yuan can buy. Suppose the number is y, then the total price of Y bowl is y× x=30 yuan.

Now we need to solve the first equation to get the value of x, and then solve the second equation with the value of x to get the value of y.

Price per bowl: 6 yuan.

So, 30 yuan can buy five identical bowls.

This problem is actually a simple division problem, and we only need to divide the total price by the unit price to get the answer.

The unit price refers to the price of each bowl, and the total price refers to the amount of money we have now.

So, we can divide the total price by the unit price to get the quantity.

So we can know how many identical bowls 30 yuan can buy.

Importance of division:

1, basic concepts of mathematics: division is one of the basic concepts in mathematics and the basis of learning mathematics. It is a basic arithmetic operation, which can be used to express the relationship between quantities, such as average distribution, the relationship between parts and the whole, etc. Mastering the basic concepts and skills of division is very important for the follow-up study of mathematics and other scientific disciplines.

2. Solve practical problems: Division is widely used in real life. For example, we often need to calculate the average, percentage, growth rate and so on. These all need division. Mastering division can better understand and solve practical problems in life, such as shopping calculation, unit of measurement conversion, engineering calculation and so on.

3. Cultivate logical thinking: Division is a logical operation. By learning division, we can cultivate logical thinking and reasoning ability. Mastering division can better understand other concepts and theorems in mathematics, such as fractions, decimals and percentages. At the same time, division also plays an important role in solving some complex problems, such as solving equations and proving inequalities.