2025 Corruption Perceptions Index (CPI) as a resource for a EFL classroom

The 2025 Corruption Perceptions Index (CPI), published by Transparency International, is a valuable resource that can be effectively used in the English as a Foreign Language (EFL) classroom. The CPI ranks 182 countries and territories according to the perceived level of corruption in their public sector, using a scale from 0 (highly corrupt) to 100 (very clean). Beyond rankings, the website provides country comparisons, global trends, methodological explanations, and contextual analysis, all presented in accessible yet formal English.

From a didactic perspective, this resource offers authentic materials that help students engage with real-world content. Because the CPI includes reports, press releases, data visualizations, and explanatory texts, it allows learners to practice reading comprehension using genuine international sources. Students can expand their academic vocabulary related to governance, politics, ethics, and global issues while also learning how to interpret graphs, rankings, and statistical information in English.

The CPI is also particularly useful for promoting speaking skills and critical thinking. Teachers can design discussions around questions such as what corruption means, how it affects societies, and why some countries might score higher or lower than others. These topics encourage students to express opinions, justify arguments, and participate in structured debates, which are key competences in communicative language teaching.

https://www.transparency.org/en/cpi/2025