Pupils from several schools in the Cieszyn Silesia region are going to improve Wikipedia and Wikimedia Commons. Wikimedia Poland and the Congress of Poles in the Czech Republic are behind the project, and Wikimedia Czech Republic has also joined in. On 17 September 2021, we organised an online training session for two bilingual classes from Třinec and Český Těšín, during which pupils learned how to edit Wikipedia. This will then be expanded during further activities and workshops, which we will be at again, this time physically. In the end, both Wikipedia and the pupils will be enriched as they learn to work with sources, verify information and create comprehensible text.