Author(s): Cunha, Maria João ; Tulekian, Isabelle
Date: 2015
Persistent ID: http://hdl.handle.net/10400.22/20016
Origin: Repositório Científico do Instituto Politécnico do Porto
Author(s): Cunha, Maria João ; Tulekian, Isabelle
Date: 2015
Persistent ID: http://hdl.handle.net/10400.22/20016
Origin: Repositório Científico do Instituto Politécnico do Porto
Back in the 90’s, early intervention professionals believed that Down syndrome should not be exposed to more than one language and manual signs would prevent language development.