In Spain, children begin primary school at the age of 6 after attending kindergarten for the previous 3 years. Compulsory secondary education is known as educación secundaria obligatoria (ESO) and lasts from the age of 12 to 16, when students choose between a broad-based academically-oriented course (bachillerato) and a vocational course (formación profesional) both of which last two years. In order to get into university you have to pass the selectividad, a two-day diet of exams.
When answering the phone in Spain you say ¡Diga!, ¿Dígame? or ¿Sí?, while in some Latin American countries you can also say ¡Aló! In formal contexts, the caller introduces themselves with a phrase like Buenas tardes, soy Carlos Urrutia. ¿Podría hablar con el Sr. Sáez, por favor?, whereas in a call to a friend they might say Victoria, soy Eduardo. Note that you say soy Eduardo (It's Eduardo) or soy yo (Speaking).