סל"ב – סלולר בכיתה is an educational application developed by the Center for Educational Technology (CET) and the Fund for Professional Teachers Union. It allows teachers to engage students in discussions, polls, games, and other activities in real-time, as part of the overall learning process. The activities are displayed on a central panel in the classroom.

With סל"ב – סלולר בכיתה, students can contribute textual content and images in response to questions or statements presented by the teacher on the board. The teacher can manage interactive learning activities using various tools, combining verbal dialogue and dynamic visualization of the discourse on the main board.

Some of the features of the application include the ability to present unidentified or anonymous comments from students, sorting student comments based on different characteristics, and allowing students to place their responses using a joystick on significant areas of the board.

Overall, סל"ב – סלולר בכיתה provides an interactive and engaging learning experience for both teachers and students, enhancing classroom discussions and collaboration.