We've chosen to use a Christian Classical model.  As Marcia Somerville and Lampstand Press so carefully explain:

• “As Christians, we believe in a sovereign, omnipotent, omniscient God who rules and reigns in all the details of history. 
• We believe that He created all the earth and its inhabitants for His divine purposes. 
• Therefore, all of history glorifies Him and teaches us something about Him. 
• Knowing history helps people to know our origins and sense our destiny. It humbles us, reminding us that we are creatures, finite, small, and completely in God’s power. 
• We do not deny that human beings have free will, nor that our choices are real, and have real consequences. But, in our modern world where we seem to have so much control, it is important for our children to learn that their lives are to fit into God’s plan, not that they are only required to "make room" in their busy lives for Him.”
1. Children are naturally curious and this should be encouraged and nurtured, never sacrificing this curiosity to stay “on schedule.”
2. Children in the early elementary years are in the “grammar stages” of learning:  they are learning the details of academic subjects – facts, lists, rules, etc.
3. Education should create children who want to learn, know how to learn, and can communicate what they learn to others.
4. Use living books as much as possible.