Gender Gap in Math Emerges Early in School, Not at Birth, Study Finds

Globally, boys tend to outperform girls in math tests and are more likely to pursue math-related careers. However, this disparity does not stem from innate abilities at birth. A large-scale French study involving nearly 3 million children aged 5 to 7 found that the gender gap in math appears within the first year of formal schooling and widens significantly within 12 months.

Conducted by the French Alternative Energies and Atomic Energy Commission (CEA) and other institutions, the study analyzed cohorts entering school between 2018 and 2021. It confirmed that the gender gap is consistent across all social groups, indicating that policies aimed at reducing the gap must be universal, rather than targeted at specific populations.

Using big data analytics, researchers determined that the onset of formal education—not age—triggers the gap. For instance, children born in December who had already started their second school year showed a measurable gap, while their same-aged peers born in January and just entering school did not. This suggests the gap is environmental, not biological.

Prior to school age, boys and girls display similar numerical and logical comprehension. The study posits that teachers and parents may inadvertently reinforce stereotypes—such as the belief that boys are naturally better at math, while girls succeed through effort—which can undermine girls' confidence. Moreover, presenting math as a distinct subject early on may amplify internalized biases. Girls also report higher levels of math anxiety, which may affect performance in timed tests.

Researchers recommend redefining what constitutes strong math ability, emphasizing not just speed but also creativity in problem-solving. Education systems, they argue, should adapt to diverse learning styles rather than expecting girls to conform to traditionally male-centered models. The study underscores that modifying early educational environments can play a crucial role in narrowing the gender gap in mathematics.