That was enjoyable - I was a little worried that the songs might go down the toilet, based on some recent episodes, but they were well-done, to the point, short, smart, and funny. It is a little odd that Lisa would sign the paper blindly, but she did ask to read it later; as well, she didn't suspect anything at that point, and she's _eight years old_. A couple of silly things (Homer's extended d'oh run, the Nixon thing, English for fat kids, Agnes hanging around), but they were overshadowed by the plot, music, and other good jokes/gags. No letter grade...but so far the season is going well.
DYN: ...Springfield has quite a lot of riots? ...other past presidents include Luann Van Houten (well, before she had that last name...unless you subscribe to the "Milhouse's parents are related" theory), apparently Lurleen Lumpkin, someone who looks like Carl, and someone who looks like Louie? ...Lisa's hairstyle looks odd (with the lines drawn in, her yellow hair looks odd) ...gym and music were eliminated, and Largo and Brunella (does she have a last name?) didn't seem to mind? ...either the writers threw in another invalid computerism, or Lisa's email address is [email], with backslash spelled out? (And of course, someone's taken this actual username...)
Previous episode references 1F08, BABF09, DABF09: Marge's gambling problem 7F19: Presidential election (previously just for 4th grade), smart kid beats goofoff (Martin/Bart, Lisa/Nelson), goofoff has silly campaign speech; though here they _want_ the president to do the "cool stuff" that the 4th grade president couldn't AABF03: Nelson has answer keys to offer 4F06: Nelson's impromptu song at end of act I recalls Marge's in favor of destroying the burlesque house 3F03: Administration doesn't like independent thought (also note that Skinner mentions brightly colored construction paper soon after; it's not too relevant but it reminds me of Lucifer's colored chalk) 9F02, 3F18: New hairstyle for Lisa DABF15: Gym teacher reappears 5F20: Milhouse and Lisa talk about the dance CABF14: Magnet school mentioned (that was a magnet high school, though, so don't expect to see Thelonious yet)
Other references I haven't seen Evita, but I know it's supposed to be a big reference
Goofs: -Krusty as president...ugh...he couldn't read, he seems to have gone to a different school, etc, but it is just a gag -Krusty's nose in his old picture keeps changing color -Maybe not a goof - Martin was originally just 4th grade president, but it's conceivable that he later became the school body president...