Especially in the time of a global pandemic, it became clear that the grammar of school has reached its limits in many areas. The conceptual design of "Mobi SchoolKit" has emerged through an exploratory practice-based research approach to rethink future learning experiences beyond traditional structures. Using the smartphone as an enabler, the Mobi SchoolKit explores diverse potentials of extended mobile learning. With Mobi SchoolKit an ecosystem for a hybrid school cosmos has emerged that demonstrates the potentials in repositioning schooling, offering a bridge between outdoor/urban space, holistic and digital learning. The kit provides a diverse opportunity space for elementary schools to apply beyond the school walls.