The Mathematics Knowledge for Teaching (MKT) is a short survey (23 items) that measures primary grade teacher knowledge by a) math domains and b) pedagogical and content knowledge. Math domain included Number Sense, Operations, Geometry, and Measurement. Pedagogical knowledge was measured by problems that measured teacher understanding of Developmental Progression, Scaffolding, and Content knowledge. In this presentation, we will discuss the process of developing the MKT survey, highlight exemplary results from the Kyrgyz Republic, and then discuss the various uses of this survey. The MKT survey build from previous work in measurement of teachers’ MKT in the United States and other countries (Ball et.al., 2008; Cole, 2012). Our goal was to create an instrument that focused on the early primary grade and was easily adaptable to multiple contexts. To do this, we created an initial instrument, conducted cognitive interviews with math and learning experts form several countries, and then conducted a pilot in the Kyrgyz Republic and Nepal. In Kyrgyz Republic, the MKT test was administered to 323 primary grade teachers in 30 pilot schools as a pre-post training survey as part of the USAID Okuu Keremet! The survey was administered online in two languages. Analysis of pre-post test showed that the survey was effective in detecting changes in teacher knowledge across all math domains and pedagogical and content knowledge areas. In Nepal, we conducted cognitive interviews with teachers, providing additional insights into how teachers were thinking about early math knowledge. Finally, we conclude with the different potential uses for this survey, such as diagnosing and measuring changes in teacher knowledge over time and using it as professional development tool to develop teacher knowledge. We will discuss implications for the use of this tool for the wider development audience.