Sometimes, homeschooled children go down the road of education and just cant move forward because you cant take them there. Perhaps a child with a learning disability needs a bit extra help or an advanced student needs more information. Teachers often work as tutors too, which means they can use their experience to push you a bit farther.
Finding supplies for homeschooling can be difficult. The web is full of sources that can provide you not only with textbooks and curriculums but also a wide range of discounted and low cost supplies. This includes things ranging from paper and pen to computers and software.