The KidGrid project is a collaborative effort to develop handheld data tools to help teachers collect and make sense of data to inform student learning. The organization’s prior research identified that schools have two levels/layers of data systems – one technology enabled (a normally summative system) , and the other handwritten or non-digital (normally teacher-driven and fragmented). KidGrid aims to build teacher-centered formative data tools that standardize how teachers record information about students are also customizable to fit within teachers’ individualized local practices. This can assist with data collection at both the administrative level as well as the teacher-studentn relationship, easing and simplifying program design and modifications. KidGrid hopes that its app and research reduces the data fragmentation between teachers and the gap between formative and summative data systems to stretch teaching practices and improve student learning.