This document discusses the pedagogical approach of simultaneity, especially in the context of mobile learning. It involves layered realities of time, space, and presence. Knowledge emerges through complexity, ambiguity, and human experiences. The principles of trust, discussion and collage are proposed to facilitate learning through movement and authentic activities outside the classroom using mobile technologies and fieldwork. Students are organized into small groups to carry out field activities documenting their experiences using smartphones, tablets and other tools, and sharing results through agreed-upon online platforms. Activities are then debriefed and conclusions drawn to wrap up the learning experience.