This study aims to propose an improvement of a Business major course in terms of practical applicability and STEM (Science, Technology, Engineering, and Mathematics). Recently, new directions and methods of Business education have been actively discussed. However, we can hardly find the discussion on the modification of existing Business major courses. In this study, with the case of financial derivative course, we analyze the differences between the manpower demand in the financial industry and the topics covered in the course to propose a lecture material to reduce them. We find that there exist huge gaps between the education and the industry in Korea. The education usually focuses on equity derivatives, whereas equity, currency, and interest rate derivatives are evenly traded in the domestic financial derivatives market. Furthermore, most of the balance is currency and interest rate derivatives. This study suggests a lecture material on the interest rate model targeting the senior students in the Business school to fill this gap. We propose an easy way of deriving the bond price formula under the Hull and White 1-factor model, the most widely used interest rate model in the domestic financial derivative market. We categorize the mathematical backgrounds required to understand the proposed derivation into the ones already covered in other courses, such as business mathematics and business statistics, and the others. We expect this study to contribute to arising the interests to the discussion on the improvement of existing Business major courses.