Instituto para la
Investigación Educativa
y el Desarrollo Pedagógico

Perhaps you should try some spelling variations:
"historia oral matematica" » "historia rural matematicas", "historia la matematica", "historia da matematica", "historia del matematica"
"historia de matematicas" » "historia las matematicas", "historia la matematicas", "historia en matematicass", "historia y matematicass"
"historia de matematica" » "historia la matematica", "historia en matematicas", "historia y matematicas"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"historia de matematica\") OR (((\"historia oral matematica\") OR (\"historia de matematicas\"))))~".
• Removing quotes may allow a broader search: (( historia de matematica ) OR ((( historia oral matematica ) OR ( historia de matematicas ))))~.
• Adding a wildcard symbol may retrieve word variants: (("historia de matematica") OR ((("historia oral matematica") OR ("historia de matematicas"))))*.