What are you basing that claim on?
As with any skill, practice is necessary to achieve competence. If homework is no longer a viable way to force students to practice, you'll need to find some replacement, you can't just abolish it and expect there to be no negative consequences.
By what means? Have you got a magic wand that will turn 3rd graders into mature functional adults who will study on their own without homework?
> The study followed 27,000 pupils aged 12 to 18
(Third grade is 9-10 years old I believe.)
This sounds really strange, never heard of.
BTW / Offtopic: I have read some weeks ago, today if you are hosting a party for your kids birthday, parents are preparing "give away bags" for handing over when leaving the party
Really well thought out goodie bags are a treat, they follow the theme of the party and they have memorable (even if low priced) gifts.
Most goodie bags are filled with disposable toys that break after a few minutes of play.
Please also abolish PowerPoint and force oral exams while you are at it.
Teachers are also luddites as a social class. Math teachers cried about calculators yet everyone of them who refused to adapt did disservice to their students (especially anyone doing statistics). My state's education system is utter trash despite being well off economically because of strong teachers unions keeping them from undergoing even a tiny bit of scrutiny.
They do not deserve the social credit/grace that they get. They are ultimately gatekeepers, whose extremely biased decisions in grading/treatment of their flocks decide which kid grows up on the streets and which kid grows up to eat lobster thermador every day.
Teachers also should not be disciplinarians. Children with discipline problems bad enough to disrupt a whole class should be thrown out of the class room as basically the only thing a teacher does for "discipline". The "right to education for the shit kids means we can't do that" framing is such trash for those who want an education and will inevitably be disrupted by a small minority of terrible students.
Also it's interesting that one of the only other things Max Stirner wrote about besides philosophy was education and his myriad problems with it (given his history as a school teacher).
https://theanarchistlibrary.org/library/max-stirner-the-fals...