I posted this last week, but it seems to have disappeared?

I'm wondering if anyone can assist me. DH & I are looking into the possiblity of homeschooling our 2 girls (2 & 1 at the moment) and I have another little bub on the way.

DD1 will be able to start grade prep in 2015, DD2 in 2016. I am wondering how can I go about homeschooling DD1 with DD2 and new bub? I would think it's going to be difficult to try and keep the other two occupied for a couple of hours each day. How does everyone manage it?