It really depends on what grade ur kid/s is. We have Phil. School of Doha (PSD) or Phil. Int'l School of Qatar (PISQ) here. These are the 2 phil. school here. My daughter was in grade 5 last 2007-08 school year at PSD. I was paying 450 QR a month for the tuition exclusive of other payables such as projects/donations as needed in the school. As for my own personal opinion, for each kid going to school here u will be needing around 1-2k QR/mos. for all the kids expenses to school but it could be more or less. U may know the real expenses when  ur living here. Besides, the cost of living here is also high. So it really depends on so many factors here. Good luck!