I'm not real hot on Abeka, I think it's okay. A lot of workbook/worksheet based material. BUT I think it does a good job of wrapping God's word around the entire curriculum. With you potentially teaching 5 children you may really needs this type of program though...
I have a 3rd grader & Kindergartner currently...
I've never used any formal program for pre-k or k I just compile my own materials and tailor it to my child's interest. My main focus during this time is reading (
Teaching Your Child to Read in 100 Easy Lessons), telling time, concepts of money, handwriting, & basic math concepts.
I ABSOLUTELY LOVE Sonlight (
www.sonlight.com)! I've used it with my oldest since 1st grade. Here again brings God's word into History, Science, etc. Heavy on the literature side though so you would really need a child who enjoys reading but check out their website and there is an area 27 reason not to buy Sonlight (
http://www.sonlight.com/articles.html) and that should give you a pretty good idea about this curriculum. Lesson plans are done for you and you have the option of a 4 or 5day plan. I'm real pleased with the level my 3rd grader is at with using this program she has really thrived with it and far surpasses where a public school 3rd grader would be.
We use Saxon for math. Here again really love the program and it makes it easy to teach. You also always have the option here of skipping levels to make it more challenging for your kiddos.
Hope this helps!