Schools are responsible for helping students in their vocational career development in the sense that they should sustain students in developing skills required by the job market. Pre-tertiary school guidance is an indispensable aspect, since poor scholar guidance is always associated with failure at school. In the context of career paths, we propose an innovative approach, a solution to guide pre-tertiary students to choose the optimum vocational path. The purpose of the current study is to develop a school guidance system called "IoT-School Guidance". The latter is supposed to create a smart and conducive environment for the successful adoption of school guidance using the Internet of things (IoT), given the fact that the IoT is the next revolutionary technology in the world where anything can transmit and receive information in real time. It is a new approach that includes implementing an adaptive orientation process using smart technologies to guide pre-tertiary students choose and follow the best professional career generated automatically by the IoT-school guidance system.