UG! I homeschool... and could not imagine this! Oh, it happens and I have seen it, too. Why in the world do people homeschool if they are not willing to put the time in?
It's a LOT of hard work, and I'll tell you, it takes nearly 100% of my time. Planning, shopping (for curriculum and supplies) teaching, grading, field trips, special classes.... it never ends. But, I love it! My kids love it!
Ok, to your daughters friend. They do online schooling, which in my state would mean they are actually public schooled from home (in many cases) and working with a public school teacher. Do you know if this is the case? I wish I could give you more details so you would know, but I dont use an online program, I really homeschool the nitty gritty way

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In her defense:
Many times homeschoolers will teach at odd times and even in odd ways. Do they know other things that maybe your girls dont know, becasue they are learning different curriculum? I mean, that could be the case.
If it were any other poster I'd wonder if they were being nosy and anti homeschool (many are), but since it's you I know you really think this is a problem and that these girls are not getting the proper help.
Another homeschool friend of mine met someone last week who didnt want her 11 year dd old to go back to public school because she does all the dishes and laundry!

My friend wanted to slap her!
I have to add that some of my neighbors think I am a crappy mom because they see my homeshooled kids outside during the school day. My kids get a recess from 10:30-11:00

. What? They homeschool so they shouldnt get play time? You'd think maybe those nosy biddies would stop and wonder why it's the exact same time everyday. Just plain stupid.
Luvsjack, I hope you can figure something out.

Do what your heart tells you.
If these were public schooled kids would you consider stepping in?