The document discusses the knowledge base needed for English as a foreign language (EFL) teacher education programs. It examines various frameworks that describe the types of knowledge teachers need, including content knowledge, pedagogical knowledge, and knowledge of learners. The knowledge base of EFL teachers specifically requires language proficiency, cultural understanding, and second language acquisition expertise. The document also analyzes models of teacher learning and reviews studies on the Colombian EFL teacher knowledge base, calling for a more contextualized approach that incorporates local knowledge.