Skylark,
I have not started to do EK yet, so I can't give you any personal experience. I has just re-started my reading program , so I was not thinking about starting for a few of months. Now, I just need to see how it goes with the curriculum and play it by ear. However, based on this article you can start once you feel confortable with your reading and math programs. Hope this article gives you the answers you are looking for. This article will also give you some product review which is nice.
http://www.childandme.com/how-teach-your-child-encyclopedic-knowledge/I got some of the BITS of intelligence from gentlerevolution, they look very nice, but are kind of pricy. I like to combine real cards with the computer programs, but I think I'm not going to get more BITS from them due to the cost.
Good luck with your teaching!
Digg
