Answers in Genesis has a lot of great Christian homeschool curriculum and I encourage you to check it out for many subjects not just Bible. However, I'm going to be talking with you about Bible today.
The ABC Bible curriculum is technically a Sunday School Curriculum that takes 3 years to complete and goes from Genesis to Revelation. This curriculum is broken down into different ages of kids. I just picked a middle ground age for my kids and stuck with it. Our family learned so much using this curriculum (even Ben and I!) I was blown away with the solid foundation my children learned and the best part is that they retained what they learned. It's been five years since we have used this curriculum and often when we are studying the Bible together this curriculum will get brought up again - which makes the time we invested in using this curriculum so worth it!
Check out Answers In Genesis here!!!