Are you wondering whether you are qualified to teach your children? Some states require certain certifications or educational levels (such as a GED or high school diploma), so the first thing you need to do is check the homeschool laws in your state. Aside from that, YES! You most certainly are qualified!
You have been teaching your children since the day they were born. You know your children's strengths and weaknesses better than anyone else. (If you are planning on homeschooling in Florida, see Teaching Qualifications for Florida Home Educators.)
Many parents feel overwhelmed and out of their element at first, and one of their biggest fears is having to teach something they never learned or don't remember. We are all guilty of putting information into our short-term memory to pass a quiz when we were in school. If you find you're lacking knowledge on a particular subject, take comfort in knowing that there are resources available to you. You and your child can learn it together, your child can take the course online, or you can seek outside help from a tutor or another homeschooler. If you have the desire to provide your children with the best possible education, you are qualified to be their teacher!