What have I learned from my 12 years old son during the holidays?

I have just arrived home from a long trip and dropped in the room of my son for a chat before he fell asleep. He told me stories about what happened with him in the school. He performed really well and I become curious about his method of learning. I knew that he does not spend much time with learning at home. He has so many other interesting things to do.

He revealed that he prepares himself in the school right before the class then he listens carefully to the teacher. To the end of the lecture he is in the state that the lesson is memorized. So, at home remain only few things to recap.

I thought that this principle can be leveraged well at work, too. I immediately remembered the lengthy meetings when we spent a lot of time to recall the known facts which were communicated in advance. During my many years in the business I faced such situations when most of the participants did not prepare for the meeting. It is not only a disrespect to others but root cause of huge loss of time.
The other problem is the lack of focus during the discussions. If we are not prepared enough we tend to ask unnecessary questions or keep silent even when it is our turn. Therefore the follow-up of the meeting also becomes lengthy and of low efficiency.

Why don't workers follow the tactic what my son elaborated and can use for his benefit? Let’s think and create a motivating process which stimulates the self-preparation, to get known the purpose of the meeting in advance. That would save huge human energy by shortening the time to reach positive results. In the age of digitization I can imagine a simple, employee friendly application to keep track of meetings, schedule the voluntary preparation and guide that activity efficiently for the benefit of all. Of course there are many alternatives not only an application but any tool, process or combination of them as a usable solution would be one of my wishes for the New Year.