This study aims at explaining the process of embedding authentic, valid, practical and effective assessment models in Indonesian language learning based on local culture contexts.The development process began with preliminary research, prototyping and assessment phases.The third stage involved three schools in the city of Padang, namely class X SMA 3, 7 and 10 Padang.The expected product is a number of assessment instruments as a model or sample that can measure the ability of the students to participat e in the school.The results of this study indicate that all the protocols, prototyping, to the assessment phases have been valid, practical and effective.This means that developed instruments can help students improve their language skills.