Integrating information technology into classroom teaching has been one of the educational goals by the Ministry of Education. It is expected to assist learning by using information technology tools, integrated in the teaching of various subjects. Teaching blended with information is that teachers use technology in the teaching of information technology activities to develop the habits and attitudes in lifelong learning.
In this study, an Interactive Response System (IRS) real-time feedback App will be used in a senior vocational high school class. Teachers use the app in the classroom, so that they can immediately ask questions or tests, and get the results from tests that students immediately take.

Keywords :App, Socrative, IRS