La brecha de género en matemáticas aparece ya en el primer año de educación primaria
En la infancia y la primera niñez, los niños y niñas muestran conocimientos básicos similares sobre los números y el espacio, pero en el primer año de escolarización surge la brecha de género.

TL;DR
- A gender gap in math performance appears in the first year of schooling, favoring boys.
- The gap was identified within four months of starting school and quadrupled by second grade.
- The study analyzed data from 2.6 million primary school students in France.
- Disparities were observed across France and were not significantly affected by socioeconomic status or school type.
- Authors hypothesize that sociocultural stereotypes about girls' math abilities and adult beliefs, including those of teachers, may contribute to the gap.
- Girls may experience more math anxiety, particularly in competitive or timed situations.