三一教學法係桃園市原住民族教育資源中心所發展出一套適合都會區原住民學生學習族語的教學策略，惟並未針對族語教學發展適當之教學評鑑機制，以協助族語教師提升教學成效。本研究的主要目的在探討三一教學法的教學成效，歸納出有效族語教學的核心內涵，並建構一套系統化之族語教學評鑑工具。此工具的開發，能夠幫助族語教師自我檢核教學，師資培育機構亦能藉此工具，規劃族語教師專業化之訓練，以提昇族語教師素質。學校能透過評鑑指標，了解族語教學的問題，提供教學需要的行政與教學支援。

　　The Trinity Way Teaching Strategy was developed by the Indigenous Education Resource Center in Taoyoun City. However, the teaching evaluation is still needed to be developed for increasing the effectiveness of indigenous language teaching. This study is to investigate the effectiveness of “Trinity Way Teaching Strategy”, and to understand the core content and evaluation tool of an effective indigenous language teaching. The evaluation mechanism will be able to help teachers self-checking their teaching. The teacher education institution can provide necessary training for preservice teachers. The schools can, using the evaluation mechanism, understand the problem of indigenous language teaching, and provide the teaching support for teachers.