Homework supervision and Spanish tutoring

We are looking for someone who can stay with our 10 and 12 year old boys after school. A little homework supervision, and making sure they leave on time for after-school activities (they will bike to most of those, and pick up from school is not necessary). 2.30pm until 5pm on most days, 1.30pm until 5 pm on Wednesday. You will have time to do some homework/studying yourself while our kids do theirs. We are especially interested in native Spanish speakers (to practice with our kids), but that's not a requirement.