How long it takes to get certified depends on what you want to become certified in or as. For the most part, teachers must first earn their bachelor’s degrees and participate in student teaching. Of course, there are tests to be taken befoe the certificate can be given. These are called provisional certifcates and may be for a set period of time. Professional certificates take longer. Check the education agency where you live or even the school or career counselor in your area. Kudos on wanting to become certified in something.