Resumen
Mobile and online learning applications become more known year after year and are used today from millions of students and educators in all over the world. Wireless mobile devices like smartphones, PDAs and tablets, could be used to benefit students? learning in or out of the classroom. In front of the idea of inclusion of mobile learning in educational process, we represent in this paper some important case studies which examine the consequence of using mobile tools and apps, as well as online applications in mathematics teaching, at all educational levels.