Zaira Ortiz-Laso will present the main advances of the Open STEAM group about teacher growth and the promotion of mathematics competencies at the Seminário TecTeachers on January 31, 2024. She will also introduce the Open STEAM professional development program. Seminário TecTeachers is a series of seminars for teachers and researchers interested in combining mathematics and technology, organised by Helena Rocha (FCT NOVA and CICS.NOVA).