Public school teachers in Brazil often work at more than one school in order to cobble together a full-time pay check.
Most public school students in Brazil are in class for about four hours each day. In an effort to get more kids studying full-days, cities like Rio are rushing to build more schools.
Primary school quality in the world's No. 7 economy ranks below impoverished Haiti. But galvanizing Brazilians to boost education for all is no easy task.
Striking trash workers in Rio were able to pressure the government for better wages during Carnival. With the World Cup quickly approaching, other sectors may try to follow their example.