Boys and girls are more skilled in those tasks depending on the cerebral hemisphere that has more performance.

It has been shown that the most prevalent myths (more than 80% of teachers believe in these myths) in education is that children learn better if we offer them information that is related to their learning style and that the differences between the domains of each hemisphere explain the individual differences of each student. It is necessary to spread the evidence in this regard in order to overcome this neuromyth in education.

Dekker, S., Lee, N. C., Howard-Jones, P., & Jolles, J. (2012). Neuromyths in education: Prevalence and predictors of misconceptions among teachers. Frontiers in psychology, 3, 429. https://www.frontiersin.org/articles/10.3389/fpsyg.2012.00429/full

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Some of the evidence that explains that it is not true that some people work more with the right hemisphere and others with the left and that for this reason we have to offer different activities.

In Nature magazine we find it explained as a myth that people learn better when taught in our favourite learning style.
Scudellari, M. (2015). The science myths that will not die. Nature News, 528(7582), 322. https://www.nature.com/news/the-science-myths-that-will-not-die-1.19022

We can also see in this article from the journal PLOSONE how they demonstrate that when faced with the same task, people who had been labelled as predominantly right-hemisphere and people labelled as predominantly left-hemisphere, the same areas of the brain are put to work in all individuals.
Nielsen, J. A., Zielinski, B. A., Ferguson, M. A., Lainhart, J. E., & Anderson, J. S. (2013). An evaluation of the left-brain vs. right-brain hypothesis with resting state functional connectivity magnetic resonance imaging. PloS one, 8(8), e71275. https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0071275

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