If you’re no good at math and spelling, blame your genes. Australian researchers say your ability to spell and add are about 75 per cent genetic, after looking at over three thousand sets of twins and their performance on standardized tests. Researchers are quick to point out this does not mean teachers don’t matter, that at the end of the school day, a student knows more than they did at the beginning because of teachers. It’s how the information is processed afterwards that genetics play a factor. If you’re struggling with your homework, maybe it isn’t the best idea to ask mom or dad for help.