The Student Perception Survey (SPS) instrument consists of a battery of items in the form of observer-reported statements that the respondents affirm using a rating scale. These statements were formulated to map with the observable attributes of their teacher’s mindset about the Lenses in the Teaching As Collective Leadership (TACL) framework. The SPS is supplemented by items linked with effective teaching and teacher leadership at the classroom level (see the Measures of Effective Teaching (MET) study funded by the Bill & Melinda Gates Foundation).