Yes and many are teacher certified.
No. I hire excellent teachers without regard to nationality. The only two things I require from my teachers is excellent English and the ability to teach well.
We know many students do not like IXL because most students only care about getting homework done quickly but going through all the problems in IXL will make sure the student really understands the material.
Yes, we understand many students need a lot of extra help and lots of tutoring is very expensive. So, we do offer a big discount on IXL.