The aim of this paper is to present materials designed for adult numeracy training. In the successive Erasmus+ projects, "The Common European Numeracy Framework" (2018-2021) and "Numeracy in Practice" (2022-2024), professional development modules have been designed for teachers specialising in adult numeracy education. The primary objective of these modules is to enhance teacher awareness of the competencies required for teaching numeracy and to address the changing demands of numeracy in adults’ personal and professional lives.