This is OT (Off Topic), with regard to Home Schooling; but it is OT (On Topic) with regard to Spain.
I am writing this, because I fear that you may not be aware of the current situation in Spain. The banks in Spain are at the point of collapse, the Official unemployment rate is approximately 25%, and Spain may eventually need to leave the Euro and the European Union. Please follow Current Events in Spain very closely!
The people we are in contact with in Spain can be classified as either "Extremely worried" or "In Panic Mode". They are removing their money from banks in Spain. The family we are closest with (they are Spanish citizens) will come to the city we live in (Cali, Colombia), during September 2012. Their dream is to emigrate from Spain, to Colombia, where they can have a much better life. Things are not perfect here in Colombia, but, they are far better than in Spain at this time.
Many Colombians, who moved to Spain, hoping for a better life, are now returning to Colombia, because they know, at this time, the life and opportunities available to them in Colombia are superior to the situation in Spain.
If you are U.S. Citizens, immediately after you get settled in Spain (or any other country), register with the ACS (American Citizen Services) of the U.S. Embassy. In case of an emergency evacuation, hopefully, they will be able to help your family evacuate from Spain to a safe country. If you are citizens of another country, register with your embassy in Madrid, immediately after you get settled in Spain.
If you have Directv or Cable TV, etc., there are probably Spanish television stations available to you. One channel we have watched with our DD is "TVE", which I believe is the Spanish Educational Channel, from Madrid.
@DKEdmisten RE: Learning Spanish
The Spanish spoken in Spain is somewhat different from that spoken in Latin America. If you learn Latin American Spanish, you will be understood and the people in Spain will understand you. Certainly, the Spanish spoken in Spain is not the pure Spanish, spoken here in Colombia, which is probably the best (purest) Spanish spoken in any country in the world. You can probably Google for something like "free online Spanish lessons" and come up with some results.
Good luck to all of you and I hope you enjoy living in Spain, as much as I enjoy living in Colombia. I have lived here for 17 years.