B.R.
S.,
I am a husband and a father and I help with homework every night. It is not incredulous to ask your husband to participate though I do have a recommendation. We men are doers and fixers and being that way means we want to see a job well done (emphasis on the done part); so when a project's end date is indeffinite we can easily lose interest. The key is motivation; I would try to get your hubby to get involved again and then don't stop praising him for his help (helps to find different ways to praise him as well) and show him the results of his labor; like you he will soon tire of the effort and showing him that it isn't fruitless (i.e. thanks to your help our kids are getting A's and B's). If this doesn't help then maybe a tutor isn't such a bad idea ;-).