Avaliação educacional: o Ideb e os sintomas da desestruturação do ensino médio

This article aims to produce an analysis on the mechanisms of educational evaluations developed at the national level. For this, the object of study was the Basic Education Development Index - Ideb. This article started from the hypothesis of a possible distructuration of the High School, considering that, as demonstrated in Ideb's results, this stage of basic education suffers from the symptoms of a stagnation or a regression in its external evaluation indices. Given this scenario, the controversial provisional measure n. 746/16, which aims to reform the brazilian high school, giving it a new profile. Key-words: external evaluation, Ideb, high school.