I'm doing a thesis on learning and technology. It is my hypothesis that the level of which an individual can apply mathematics to a situation is merely a product of the way they've been taught math rather than influenced by any predisposed ability caused by some genetic advantage.
A recent report of Danish high school student revealed that 20% fail mathematics even they only needed 30% correct answers to pass. To me, this indicates that the way we teach mathematics has failed. But I often hear the argument, that not all a disposed to learn math or take a high school exam.
Could anybody please guide me to research in this area?
NOTE! I understand that there are extreme outliers, such as brain damage that hinder people from learning mathematics.