Hagamos Una Grafica

by Lisa Trumbauer

Published 1 September 2003

¿Qué Hace Diez?

by Lisa Trumbauer

Published 1 September 2003

Restar

by Lisa Trumbauer

Published 1 September 2003

Duplica Los Animales

by Lisa Trumbauer

Published 1 January 2006

?por Que Medimos?

by Lisa Trumbauer

Published 1 September 2003

Animales Gigantescos

by Lisa Trumbauer

Published 1 January 2006