This document summarizes Day 1 of a teacher training on differentiated learning held in 2012. It includes an introduction of the trainer Rendra Prihandono and his background. The training covered classroom expectations, activities to understand differentiated learning, the role of the teacher in a differentiated classroom, assessment examples, and strategies learned. Participants were engaged in group discussions and presentations. The goal was to help teachers understand that differentiation is qualitative rather than quantitative and accommodates student readiness, interests, and learning profiles.