The eight science and engineering practices outlined in the Next Generation Science Standards (NGSS) are key to student science learning. However, there is limited guidance for teachers on what these practices should "look like" in instruction across different grade ranges and topic areas. This paper describes the development of two products to facilitate measurement of the extent to which classroom instruction aligns with the "Framework for K-12 Science Education" (National Research Council, 2012) and the subsequently released "Next Generation Science Standards" (Next Generation Science Standards [NGSS] Lead States, 2013), particularly the science practices. The first product is a primer that operationalizes the science practices for different grade levels and content areas. The second product is a selected-response survey for measuring how often teachers implement the practices in their science instruction.