Resumen:
The present work is an investigation which objective was to establish the use of WhatsApp as a teaching tool to enhance the writing skills on 23 students of tenth basic year at Unidad Educativa Alfa y Omega, in Santa Elena Province, Ecuador. The investigational group was allowed to use WhatsApp messenger Application in a smart device, whose principal characteristics are the usefulness of groups chatting, personal chatting sharing that allowed enhancing the writing skills on students through the practice of interactive activities, lectures and podcast. For the development of this research it was required to apply the qualitative method by implementing techniques such as: Focus group, observation and interviews. The results of these analysis demonstrated that the application of mobile learning technique in a smart device (WhatsApp), generate significant effects on writing skills of students such as the improvement of writing skill. These outcomes suggest that teachers should start changing traditional ways of teaching English specifically in the writing training sessions and explore new methods to improve production on students.