Marge and Homer have different reactions, as the following conversation shows:
Marge: One month? That's a heavy workload for a fourth grader.
Homer: I say this boy needs more homework. (I don't have to do it with him, do I?)
Principal Skinner: No.
Homer: Pile it on! I want him to be Korean by the time he's done.
I wonder how Korean students would react to seeing the stack of homework in the photo above.
I was also curious as to whether this Korea reference was influenced by President Obama's comments about the Korean education system. I could remember a few other references, however, and this guide gives us a list of all the previous references to Korea in the Simpsons (I remembered the references to Korean gangsters and to the broken-legged gymnast, along with another shown below).
Of course, another reason for the Simpsons to refer to Korea would be because the show is animated in Korea, as this interview with Nelson Shin (신능균) shows. Be sure to watch it - not only is there a behind the scenes look at the studio, and animation in progress, but we learn a little about Shin's past (While I was aware he had animated the Transformers cartoons in the 1980s, I had no idea he'd animated the Pink Panther or created the rotoscoping for the lightsabers in the first Star Wars film - very cool).
At the end of the clip, the interviewer mentions a scene I remembered well from a 1992 episode which featured Kent Brockman reporting from a studio in Korea showing how animation for American shows was done (click to enlarge the panorama):
I suppose that was during Roh Tae-woo's presidency, and Chun Doo-hwan had been voted out only five years earlier, but, as the interviewer mentions, Shin must not have been very impressed animating the scene (though he responds diplomatically, talking about cultural difference).
I've made brief references to the Simpsons before here and here (and more here that I forgot about), though not quite as often as you would expect from someone who did an undergrad thesis on the Simpsons, and who once had a student draw a 'map' of my brain with 'Simpsons' at the center.