T here are many concerns when choosing curriculum.
For most, cost is of course a concern. If you go with a packaged curriculum such as Calvert or Abeka, then you are going to incur signifigantly higher cost than if you put together a curriculum of your own. Unit studies are a great way to go and have a very low burn out rate. The advantages to this type curriculum is that it comes complete with everything you need to get started teaching and that includes a very comprehensive teachers manual which I could not do without. I am not a teacher by trade or any other means.