HAUTALA, T. Math Tree grew from discussion to in-service training. LUMAT: International Journal on Math, Science and Technology Education, [S. l.], v. 2, n. 1, p. 13–16, 2014. DOI: 10.31129/lumat.v2i1.1079. Disponível em: https://journals.helsinki.fi/lumat/article/view/1079. Acesso em: 4 may. 2024.