I am an assistant at Texas, I had a DWI, just Finished my degree and was hoping to get a job as a teacher, I told my client if at all, this will help to find a job? No criminal record ever, and I have already had fingerprints and background checks when I started 3 years ago, as a help.
From a legal perspective, a school can certainly take your criminal history into account when making hiring decisions. That said, the answer to your question depends on your the policies of the principal, school, and school district for which you are applying. You will probably get a more precise answer contacting any of those three entities, than relying on strangers on Yahoo Answers.