We did this when we homeschooled. We hired a teacher we knew who had recently gone part-time. She knew my son and was happy to teach him. I told her we were skipping him as part of homeschooling, so she investigated state standards for several grades above where he had been, and taught to those standards. She only did language arts, but she also checked in on his science work. He also had a math teacher he met with via Skype (he still does the math lessons even though he's back in a b&m school). The rest of his classes he did online. In our state, parents can set up homeschooling however they desire, so this was a great option for us. One other thing was that she was incredibly affordable-- less than his math teacher-- so I paid her more than she asked for, which made us both happy.