Lucita

Hi Story.

I wouldn't bother revising this - just scrap it and start fresh.
You begin this as a hopeful, fleshed-out story, and for whatever reason decide to cram a cliched moral into the concluding paragraphs. This is too rushed. Don't write something in five minutes and expect it to be a complete, workable piece.
You've got too much telling going on, as well. The story is more along the lines of, "I'm an outcast, I wish I was this girl's friend, I took Spanish classes" kind of description (or lack thereof). Apply setting, emotion, and more dialogue to your work to produce a realistic and interesting scene that you can build your story off of.

Keep writing.
Hap

Oops, thanks on that Attolia, I didn't catch that! Haha, you might have noticed my Spanish isn't exactly brilliant...I meant to mess up on Jamie's but I didn't catch the mistake on Lucita's, so thanks. Thanks also J (can I call ya J? Too bad, I will ) you make a lot of good points, I'll revise this when I can.

Good job. I liked how it wasn't your cliche high school story about girl meets boy . But mostly I just wanted to correct your Spanish. Now, the extent of my Spanish comes from the hellish semester I spent in AP Spanish 4 (and thus, granted, also four years of spanish, as well as living in a bilingual area), but I know that "me llama es Jamie" should be "me llamo Jamie", and "Hablar Espanol?" should be "¿Hablas español?", considering she is speaking to a peer (and they don't capitalize names of languages). My Spanish teacher always stressed to us how "me llamo es" was the surest way to identify yourself as a gringo; that it was always, always just "me llamo" (directly translated it would mean something like "to me they call"). Although Jamie's Spanish is rusty, if she knew enough to translate for Lucita I think she would also know this, and Lucita would know to say "hablas".
Hahah, I'm sorry for this little lecture on Spanish that you probably didn't want, but I couldn't really restrain myself, it was like a knee-jerk reaction. On the plus side, this will make your story a little more authentic .

Great work! But I can see how you've compressed the plot that belongs in a book. Here in a short story, it sounds rushed at the end. I really think you could do this in a much, much longer version.
I still have no idea what they were supposed to be doing with the rocks, nor of anything else about their school, but since that information is somewhat unnecessary, you did good to put it out of focus.
Something that you shouldn't have put out of focus was the 'I' person's name, I looked back and couldn't find it!
...
No wait, found it. Right where the teacher tells Lucita to sit next to her. Ah, ahem. XD. But anyways, it came kinda late, you might want to put it in kinda early, like in Mandy's dialogue.
That's all i have.
Jenth