trajectory of two math collections approved by the PNLD

This work arose out of the research for my Final Paper and is of great importance in the study of the National Textbook Program (PNLD) and its reflexes as a public policy in obtaining textbooks for the country's many public schools. It will provide the reader with a unique experience with regard to the Textbook, which is beginning to be reflected in teaching practice as well as in the teaching and learning process of students in the classroom.