In this article, author Daisy Christodoulou, a former teacher in the United Kingdom, debunks the myth that teaching facts prevents understanding, and she explains why teaching content knowledge is part of the primary mission of education. Throughout this article, she tries to stress that she shares the aims of many of the people whose methods she disagrees with. She does however say that she is concerned about the current education system because she thinks that the methods currently being used to achieve educational improvement simply do not work. She believes that the main reason they do not work is because of a misguided, outdated, and pseudoscientific stigma against the teaching of knowledge. She shares a strong conviction that there is strong empirical evidence about the success of curricula that teach knowledge, and that there is strong evidence about the success of pedagogy that promotes the effective transmission of knowledge. She argues the points that knowledge is at the heart of cognition, and if educators fail to teach knowledge, pupils fail to learn.