Today, Indian engineers are supporting the world's most advanced IT industry. The secret of why India is producing so many excellent engineers is hidden in its unique math education. Indian elementary school math classes are based on a learning method that requires students to think about why things are the way they are, rather than just memorizing them like Japan's ku-ku. The children learn by thinking about how to calculate more efficiently to get the correct answer, which makes math interesting and encourages them to study more spontaneously.