“Los saltos de las ranas”. Estudio de una secuencia didáctica de proporcionalidad, con problemas de comparación de razones, en quinto grado de primaria
This tool is under development and it is available in Beta Test version
This tool is under development and it was published with the objective to test the usage and performance. All the indicators are real and they are gradually being loaded. Slowness and out of service problems may occur in this version.