If adults have such a concept, then whatever a child gets in his hand can become a "teaching aid" to help him develop his mind. Taking a mobile phone as an example, my son Yuchen saw my mobile phone for the first time when he was about 1 year old and wanted to take it with his hand, so I told him: "Yuchen, this is my father's mobile phone, I will show you how to do it. Turn on your phone." Then, I'll press the phone's home button to light up the screen. Then he saw the screen light up and looked at me with wide eyes. I just said, "Yu Chen, do you want to try it?" I turned off the phone screen and asked him to press the home screen button to turn on the screen.
In the first practice, he repeated 6 or 7 times. After that, when Photo Manipulation Services he saw my or my wife's phone, he would press the home button to open the phone, and he never picked it up and lost it or thrown it away. This confirms our theory: when a child knows how to use an item correctly, he won't do it the wrong way. Then there's the TV remote. When Yuchen was about 1 year and 5 months old, he saw the TV remote control for the first time in his grandfather's room and wanted to get it, so I told him, "Yuchen, this is the TV remote control, I will show you how to do it. Turn off the TV."
I showed him how to press the big red button in the upper right corner of the remote control, and as soon as I pressed it, the TV that was on was turned off. Seeing that the TV screen went black and suddenly there was no sound, my son looked at me with wide eyes again. I said to him, "Look, I turned off the TV. Now, I'm going to press this button again to turn the TV on."