Well, hello Lisa...
I think the difference lies in your ability to control a classroom. Sometimes when people 'just like working with kids' they only work well in small settings with limited required curriculum. In my opinion, being cut out to be a teacher means you enjoy working with kids as well as can work with them in a controlled setting!!
I think if you respect little ones and sincerely enjoy being in their company that's all you need. Classroom management, pedagogy, content, all these will fall in place... it takes time, but if you are dedicated you can learn these with reflective practices, reading and from your colleagues.
Best of luck!
That's a tough one Lisa and so far you've received some good advice. I'm not so sure though that as some have suggested, teachers are made. I do believe that we have gifts and talents that maybe non-teachers do not possess (kid-patience) for instance. But, please remember that teaching is a passion, it is a vocation, it is a calling. You really have to love what you are doing and enjoy getting up every day and going to work. Even those times when you have what seems like the class from another world. Will you know this right away? No, probably not. Teachers, like any profession, are formed. Over time, with experience, good mentors and colleagues, teachers become who they are and what they mean to students. You truly need to do a lot of self reflection as a teacher -- the effectiveness of your lesson, assessments, evaluations, etc, etc. At the end of the day, you need to want to make a difference in your students' lives. If you can touch just one a year, you have made that difference and you are a teacher.