Can someone please check my introduction from my recommendation form. "I want to tell that I am in the 12th grade and I am planing to go to UCLA next year. I sign up for the Latino Scholarship. Many latinos are applying for this scholarship and I need your help since you know me very well and also my academic background. We have known each other for a long time and hope you can help me. I really want you to help me to get this scholarship."

Question

wach · Answer

Is this a form you turn into your teachers? 
If so, it sounds good and very formal, but if you're close to these teachers, you may consider making them slightly more informal? It's very good anyhow. :)
Some grammatical issues: 
-  "I want to tell" does not make sense, or isn't common. And you don't need to say that you're saying something .. Because you already are, within that action. Instead, it would be better to say something like "I'm finally a senior and planning on going to UCLA next year", and I'm sure your teachers know that you're in the 12 grade. 
-  "I sign up" Wrong tense, you'll want to instead say, "I have signed up" or something in the past tense. 

Hope that helps and good luck with your scholarship :D

anonymous · Answer

For an introduction, my suggestion is to state your purpose and please do it properly, and formally even if you are REALLY CLOSE to the professor: ie. "I am requesting a letter of recommendation for my Latino Scholarship application at UCLA."

anonymous · Answer

the rest, take wach's key points