I heard that primary and secondary school textbooks in Australia used to be "public", especially when children got visas to study abroad. It was the summer vacation in Australia. With many years of educational experience, in order to "not fight an unprepared battle" and let children have a perceptual understanding and preview first, I called an old friend and asked him to borrow a set of textbooks used by my son who was in high school in Australia last semester-as expected, this was a piece of cake. But it failed. The other end of the phone said that the textbooks in Australia do not belong to the students themselves. According to local laws and regulations, textbooks must be handed down from session to session until they can no longer be used. Even if some contents are out of date, there can only be a few revised "loose-leaf", and the "loose-leaf" should be handed down from session to session. Last semester, my friend's son used textbooks that had been handed down many times and returned them to the school before the holiday as required ... I can't help but feel deeply that people are really "environmentally friendly", really rich, really frugal and effective. And this is hard to get in China? A year later, the child also came back from a holiday in Australia. Inadvertently, on his desk, I saw with my own eyes a thick physics textbook for next semester that he brought back to preview. The winter sun shines obliquely on it from the window-the blue cover, A4 paper type, exquisite and elegant full-color printing, and the thickness of more than 300 pages ... Everything seems to be alive in the fresh light beam, which makes people feel an inexplicable sense of intimacy and respect. It's even more surprising to flip through it: except for some vicissitudes on the blue cover, the inner pages of the whole textbook are almost brand-new-how is that possible? Year after year, not all middle school students are physically and mentally healthy and positive. Isn't the class there "free" and "casual" more like the market? Isn't the teaching requirements, students' efforts and competition in grades exactly the same as those in China? And how can such a process not damage the textbook, but cherish it? What keeps them and how to keep the brand fresh? This is how many days and nights of reading, even if there is only one negligence ... However, the fact exists so firmly, as if deliberately confirming some kind of "inevitability" that we are used to and turn a blind eye to, but it is far from inevitable. So I can't help but observe the child who previews his lessons from time to time with doubts-he has also changed. Those natural, casual and indifferent learning actions developed in China have become a "natural" process, keeping your hands clean, and then turning the pages gently and carefully, just like everyone is taking care of their precious things-some things are not impossible, but how you realize and practice! And the habits accumulated over the years are not static-in just one year, children's "habits become nature" for more than ten years is not another kind of "nature"? Not only that. The literature and professional thinking that I have been engaged in education also tell me that "public" and "hereditary" textbooks actually have richer gold mines. This is a central detail. The lessons it gives people, like an ancient ceremony to maintain a national culture, are both condensed and radiated and endless. For example, we can cultivate respect and consciousness of laws and regulations from an early age; It is an honest and beautiful campus civilization; Can achieve the quality that everyone is for me and I am for everyone; It can make people cherish nature, and also cherish their own work with others, thus cherishing life and improving people's quality and national quality; You can also train the rationality of life in the active nature, that is, nature should not and cannot "offside" to do wrong things such as destroying textbooks ... Facts have proved that practical and effective measures are more important and effective than countless propaganda, and market economy can also go hand in hand with ecological protection and diligence and self-discipline (Australia is rich in forest resources, with more than 400 forest parks in Melbourne alone, but it is using a tangible effect and example to make children feel that they are also a beautiful part. However, the importance, feasibility, all-round interests and deep-rooted nature of childhood education cannot be overestimated ... or even criticized, criticizing those false behaviors of saying one thing and doing another, and criticizing those vulgar printed materials, especially. " It is also a mirror that highlights the moral bottom line of making money, because it is also earning, and it will earn more and earn more. How can people get positive and negative? Isn't it also a concrete reference-that is, can we also adopt this "inheritance" method, or at least use it to help students in poor villages? ..... The power of detail is sometimes immeasurable. Although dribs and drabs, it is they who have accumulated progress and mistakes in life and history. 1. What is the usage of teaching materials in Australia? 2. Talk about your understanding of the underlined sentence "Some things are not impossible". 3. Why do you have an inexplicable sense of intimacy and respect when you see the textbooks your children brought back from Australia? 4. What does the author mean by comparing the changes of his children?