Tanglewood sells a Book of the Centuries for about five bucks. You can print out as many pages as you like as it is a pdf file I believe.
(Wow, talk about resurrecting a thread!

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In addition, their corebook/planner is first rate, and great to plan your own lessons. That's the way I want to use Tanglewood. I want to create my own curriculum and plan my own lessons and have space to incorporate my own subjects, like Spanish and Geography. I like the flexibility of Tanglewood above all because children can pursue their own interests along with the curriculum.