Around 30,000 students from more than 1,400 schools across the country will sit diagnostic tests between today and the end of the month to assess what they have learned during the covid-19 pandemic. The idea is to evaluate the learning of students in the 3rd, 6th and 9th grades taking into account the exceptional situation since March of last year, when face-to-face classes were suspended and replaced by distance learning. Tests will be done electronically between today and January 22.