Quartz has a post about a study in UK of children and the heritability of math skills. They report that a large portion of math as well as other school achievement is due to hereditary factors.
Our study showed that the mean results in the GCSE core subjects of English, mathematics and science is more heritable (62%) than the nine other psychological domains (35–58%) we looked at.
What???? It makes sense to me that there would be behavior tendencies passed along, like ADHD, but math skills, or lack thereof? I have seen anecdotal evidence to refute this claim. In my own family.
Anyway, it’s an interesting article.