This could work for talented kyu children who could become a 1dan and then a 7 dan within a year or two years. But that doesn’t happen to adults. Also children will never forget what they learn. Adults can forget lessons much more easily.
In the years of teaching hundreds of kyu players, I’m convinced that you should study things at your level..
If you’re a 10 kyu player, you should study tesuji, life-and-death, joseki at 10 kyu levels, and I can tell you why.
Please think about it this way.
Suppose you learn a ski jump. As a sky jump 10 kyu player, would you go up to the top of a take-off ramp from 100m above the ground like top amateur ski players do?
No!
If you tried to slide and fly from the 100m top ramp, you could die or at
least end up with broken bones.
You probably start with learning how to jump from a 50-cm hill,
and then 1m-hill, and then 2m-hill, and so on down the line.
But kyu players often try to learn 4dan, 5dan, 6dan, 7dan things. For example even if they successfully play a 4dan joseki, they should keep playing 4dan moves in order to maximize the joseki. But that’s probably impossible for kyu players.
What often happens is that many of their stones often end up with dead or broken bone stones in the middle of the game when they play with a bit stronger player.
This is why you should learn basic things at your level. Otherwise, your stones
will keep facing dead stones or a lot of broken stones, and you will only lose confidence.
Also if you study at your level, you will understand things much more
easily. Then you can retain them and apply them. Further, you probably enjoy
learning them because you can understand them.
When I give a private lesson, I examine my student’s games (10 or 20 games at first) to learn how much they understand things because every key player has a different understanding. (Ideally I should examine 100 games, but I don’t have time.) Then I start commenting on their games.
After commenting on their games, I try to choose problems at their levels. If you’re interested in my private lesson, please take a look at my website (which will be updated sometime very soon. So please wait. I’d appreciate your understanding. )
I hope you find this advice useful.