Currently, some public institutions do not have the necessary technology to record grades, attendance and conduct, and this is affecting schools and parents when it comes to getting their children's grades because mistakes tend to occur when entering grades or attendance manually, and not having a virtual system where the filling of grades is done, where they can offer security, time savings, and easy accessibility for parents. Thus, we designed a prototype as a web system design that meets the requirements required by the institution. It was developed with the Scrum methodology as an agile development framework for software creation. As a result, designs according to a web system complying with the procedures and requirements established by the Scrum team give a basic proposal and a productive approach for the development of the web system within the processes of grades registration, attendance and student behaviour. Therefore, an institution can implement this proposed web system design in the future.