Although the content is to let children accept the concept of "negative number", from the perspective of content arrangement, it is not preaching at all.

After reading it, the children were first attracted by the story, that is, watching how Perry bought his favorite scooter step by step through his own efforts.

Substitution is natural, isn't it

Then, in order to save money, Perry resolutely refused the temptation and had several psychological struggles. For example, in order to save nine clams, he insisted on not buying small fish skewers, even if his good friend said to lend him money, he would never do it.

It's actually very interesting. It is also a kind of concept education. You can understand it as delaying satisfaction, or not giving up when you have a goal. This is a subtle influence on children.

I like this kind of education.

Picture books also convey the idea that you can get paid through your own labor, so you can buy what you like. You can understand this as a concept of financial management, and you can also understand that you should practice, love labor and create value through labor. Create a better life through your own struggle.

We can also regard this as Perry's growth history. He never does things at sixes and sevens and suffers setbacks along the way. Later, he got up and got rid of his weak belief, and finally had a perfect result.

In other words, you can interpret it from multiple latitudes. Of course, you can also guide children to make charts and express them to enhance their mathematical thinking exercise.

I think this is also the characteristic of excellent picture books.

Pay attention to the word "clam" in the book. I'm worried that the child has a problem understanding it. I just changed my shell. Facts have proved that the effect of nonsense is also good.