Great first chapter, I love the idea and I'm waiting for continuation.

Very good, I can only agree with the other comments here.
A couple sentences are wrong though. Wait a sec and I'll post them

First
"Long Island South. -New York-"
It's Long Island sound not south.

Second
Born and bred in New York, New York
That sounds a little weird and I think with the second ny you meant manhatten

Third
Thank you for seeing them to me Professor Jackson
That just seems weird, I'm not a native speaker so I dont know if it's grammatically correct to say see but I would write down bring instead.

Also i hope you're also make some bonding with other students and teachers so it's not completely focused on the main characters of Harry Potter.
Did you plan a pairing or something by the way here? In your other books you always made teasers about it but never really decided or it changed often so yeah, some info would be nice.
Otherwise I enjoyed it very much
See ya in the next chapter

thanks for giving us a proffesor Percy that is more than just "the golden trio dosn't like him therfore he must be bad"

really liked this first chapter. a refreshing and new take on this crossover. I especially like that Percy isn't teaching dada or combat of some form like in other similar stories. really looking forward to future chapters

oeh, i love. it is exciting to read your story because it differs from other harry potter pj crossovers. very good! can't wait for the next chapter

This was a fun read! I can't wait for more!

Oh my gods I love this! Seriously I've never seen a teacher Percy who started in the chamber of secrets. I wonder if Annabeth is still in the picture and if so whats her reaction to Percy leaving for a whole year. Draco being put in his place was brilliant and now that I think about it no one not even McGonnegal or Dumbledore even considered asking for Harry and Ron's POVs or checking to see if they were alright after what would easily be considered an extremely traumatic event for a 12/13 year old

Man, I have no self control either. I insta faved even though I feel cheated for no TLA for so longit hurts, but I'm somewhat hopeful this may be able to hold me off till then.

Brilliant start man honestly looking forward to more. Not gonna lie I am waiting for the next arc in argonaut but everything you have written has been great in my eyes. Screw the haters keep doing what your doing its great!

I knew this was gonna be good

As a fan of your other stories, I'm really excited to see where you go with this! I've been on a Percy Jackson tear lately, so a crossover between HP and PJ that's actually well-written and engaging is a breath of fresh air. I haven't read too many, but having an older Percy be a teacher seems unique and fun - I already can't wait for the next chapter!