Education · Data · Artificial Intelligence

Education policy built on evidence.

Essays on what the data says — and what it does not — about education in Brazil. By Daniel Castro, pedagogue, education researcher and data scientist.

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Daniel Lopes de Castro

Former Director of Data Governance and Integration · Brazilian Ministry of Education

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Recent essays

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An invitation: learn how to use this site

Newsletter, a PDF you can read anywhere, one-click sharing, a contact form, a citation already formatted for you, a light or dark theme, and my profiles. A short guide to what this site does for you, with a video at every step.

August 25, 2026 6 min read

Selected research

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Learning loss and learning inequality during the Covid-19 pandemic

Ensaio: Avaliação e Políticas Públicas em Educação, 30(117) · 2022
The impact of the Covid-19 pandemic on children's learning and wellbeing

Laboratory for Research on Educational Opportunities (LaPOpE/UFRJ) — funded by Fundação Maria Cecília Souto Vidigal · 2021
Public and private schools: the impact of school sector on learning and educational inequality

Master's dissertation — Graduate Programme in Education, Federal University of Rio de Janeiro (UFRJ) · 2021
School Segregation and Education Inequalities at the Start of Schooling in Brazil

REICE — Revista Iberoamericana sobre Calidad, Eficacia y Cambio en Educación, 18(4) · 2020