The document discusses design-based research (DBR), which is a systematic but flexible methodology aimed at improving educational practices. DBR involves collaboration between researchers and practitioners in real-world settings to develop contextually-sensitive design principles and theories. It focuses on designing, constructing, implementing, and adopting learning initiatives. The core method of DBR consists of four steps: analyzing problems collaboratively, developing solutions informed by design principles, testing and refining solutions, and implementing solutions while reflecting to improve principles and solutions. DBR provides practical and theoretical contributions, improves learning, generates new ideas, and introduces useful research methodologies.