Because school isn’t a streamable activity, and hasn’t been for several decades.
School today works in a way where the teacher doesn’t teach the students things directly, but where the students try to explore and understand themselves in small groups, with the teacher only giving hints.
This technique started in the applied sciences, where the concept of giving students a task, like "find out what this material is" (chemistry), and letting each group then design an experiment on how to test it, and then – after they succeeded or failed – letting each group present their results to the others.
Nowadays, it’s used in almost all classes, from language classes to math, from PE to compsci.
Streaming such classes – which are the majority in todays schools – would be an impossible task.
EDIT: Again, if you downvote, please comment why you did so – an open discussion is always better than just plain downvoting, as it helps understand why you disagree.
Even if we accept you premise that all classrooms work that way (which is not a universal truth)...I don't see why that would make streaming impossible. On the contrary, it would make it easier. Self-paced exploration online, with collaboration with a teacher or peers as needed. If lecture-style teaching is appropriate for a topic, it can be recorded and streamed, and the student could always pause it, replay, or ask a question in realtime before moving on in the video.
FWIW, Not only is streaming education possible, it is already happening in the home-schooling world, and k12.com comes to mind, which is driving online education in public and private schools. Trust me, I attend educational trade shows, and I see increasing number of vendors in this space. And yes, some of this is moving to the traditional classroom, but we are a few years off of it being common.
All of these things require working with others in groups, physically.
You can’t work on an experiment in chemistry or physics or biology via streaming together (aside from the fact that buying all the required materials is a financial impossibility).
How is playing an excerpt from a theatre play in groups possible online?
Almost all language and scientific education requires direct interaction.
> it is already happening in the home-schooling world
Which is something that most nations have declared as "not properly fulfilling the right to education of the child".
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I’m seriously questioning how you propose kids do scientific experiments or do theatre plays, etc in groups via online education.
You have a valid point that some subjects do require interacting in real life. Good thing I never claimed that ALL education can be handled online, and was just showing that some education can and does happen via online streaming, and it increases every year.
As far ALL things require physical interaction... no. That is simply untrue. Some do, not all. You gave valid examples of some that do, and I agree with those. But you are approaching this discussion with absolutes and tossing the word "impossible" around enough that I want to respond with quotes from the Princess Bride.
This is certainly in line with everything that's come out of physics education research over the past few decades. (I'm a physics prof, and I try to pay attention to this stuff.) Passively sitting back and listening to lectures can actively hurt student learning (if you ask students how confident they are in their knowledge of physics right before a lecture-style class and then again immediately after, it gets worse). In a head-to-head comparison of exam results between one section of a class taught by an award-winning lecturer and another taught by two first-year grad student TAs trained in active learning techniques, the active learning students won by a mile.
It’s even worse in high school and middle school, because students creativity, interest, and ability to understand are severely hurt from just sitting back 7 hours a day and memorizing everything they hear.
In university, we always have for each course each a lecture (which is pure "listen and learn") and a lab (where we have to do things ourselves in groups, show the others our results, solve things together, etc.).
A lab and lecture for each course, 4 courses per semester. And it’s a pretty good combination, we get experience with practical stuff, and can learn better, but we also get to hear specific details in the lecture we might have missed if we had only done the lab stuff.
As far as I know, this education is standard here in northern Europe, and has been for as far as I can remember – but then again, I’m only 19 :D
School today works in a way where the teacher doesn’t teach the students things directly, but where the students try to explore and understand themselves in small groups, with the teacher only giving hints.
This technique started in the applied sciences, where the concept of giving students a task, like "find out what this material is" (chemistry), and letting each group then design an experiment on how to test it, and then – after they succeeded or failed – letting each group present their results to the others.
Nowadays, it’s used in almost all classes, from language classes to math, from PE to compsci.
Streaming such classes – which are the majority in todays schools – would be an impossible task.
EDIT: Again, if you downvote, please comment why you did so – an open discussion is always better than just plain downvoting, as it helps understand why you disagree.