This document discusses assessment in the CLIL (Content and Language Integrated Learning) context. It addresses three main issues: 1) Whether to assess content, language, or both, with content generally prioritized. 2) The importance of clear learning objectives. 3) Using a variety of assessment methods and instruments, both formal and informal. These include exams, tasks, rubrics, portfolios, and self-assessment to minimize language impact and effectively evaluate content knowledge and language skills. Formal assessments should have low linguistic risk while informal and formative assessments provide ongoing feedback to improve learning.