Development of Number Sense in Third Grade of Elementary School Using Serious Game. - Luis Armería Zavala; Sara Catalina Hernández-Gallardo (ICCE, 2012)

Designing interactive activities within Scratch 2.0 for improving abilities to identify numerical sequences. - Luis Armería Zavala; Sara Catalina Hernández-Gallardo; Miguel Ángel García-Ruíz (IDC, 2013)