The Gender and Sexuality in Mathematics Education Working Group convened in 2018 with a focus on (1) language use, multidimensional understandings of gender and sexuality, and influences of these on methods, results, and interpretations; (2) interactions between gender/sexuality and students' self-perceptions; and (3) the roles of curriculum, pedagogy, and teacher education in students' experiences of gender and sexuality. The 2019 Working Group will continue with these foci, but with an added dimension of learning through examination of work in gender and sexuality in mathematics education across the world, including country/culture-specific studies, and cross-cultural studies. [For the complete proceedings, see ED606556.]