Join a Christian homeschool forum online and if possible, find a Christian homeschool group nearby.
Research the available Christian homeschool curriculum. Read reviews and ask questions about the ones that appeal to your family. Learn about the Christian homeschool curriculum that your friends use and ask them what they like and what they don't.
Choose a method or style that you and your children would prefer. For example, Christian homeschool curriculum with a classical education will focus on the stages known as grammar, dialectic and rhetoric. A more modern Christian homeschool curriculum comes complete with all subjects used in conventional schools--social studies, science, geography and language arts.
Find a source for the materials you want to try. Purchase Saxon Math school texts from book distributors or suppliers of Christian homeschool curriculums, buy classic literature from bookstores and find A Beka publications through the publisher. Christian Homeschoolers online has a comprehensive list of Christian homeschool curriculum resources.
Order materials and plan a daily homeschool schedule. Continue to use the forums and local groups for support and questions. Before you know it, you will be giving advice to others who need help choosing a Christian homeschool curriculum.