Sending expat kids to school in Argentina

We are planning to move to the San Rafael area in March when the school year starts. We have a 5-year-old and a 7-year-old. What are the requirements for admittance to Argentinian public schools? Is a passport, copy of birth certificate, and immunization records enough?

Our first choice is public school but are there any International schools, French schools, Montessori, or other small private schools in or outside of San Rafael? Do the private schools have different entrance requirements?

thanks