The Interactive Surveying Instructor (ISI) is an extension of the work developed by Garbanzo and Lara (2018), who created a web 2.0 app for teaching differential leveling in surveying engineering. Two improvements were done to enhance the user experience and include surveying equipment that is important in the first stages of the engineering training: developing a new web interface using bootstrap 4.0.0 and a module for optical-mechanical theodolites. Often, these students have problems to practice on the field because they need a peer to assist them with the equipment, this situation can restrict their learning. ISI was developed using PHP, MySQL, JavaScript and it is a light web application designed to simulate equipment readings. Furthermore, the readings made by students are stored in a database to analyze them. ISI is operational but still is not suitable for mobile screens. This adaptation to mobiles is the next step in this project. [For the complete proceedings, see ED590269.]