While digital tools are more and more used in classrooms, teachers' common practice remains to use photocopied paper documents to share and collect learning exercises from their students. With the Tangible e-Ink Paper (TIP) system, we aim to explore the use of tangible manipulatives interacting with paper sheets as a bridge between digital and paper traces of learning. Featuring an e-Ink display, a paper-based localisation system and a wireless connection, TIPs are envisioned to be used as a versatile tool across various curriculum activities. In this paper, we present the design principles of TIPs and a first functional prototype. We conclude by presenting future works in the evaluation of TIPs as a distributed sensor for teachers in their classroom, including learning scenario examples to illustrate our statements.