Instituto para la
Investigación Educativa
y el Desarrollo Pedagógico

Perhaps you should try some spelling variations:
"historias de matematicas" » "historias las matematicas", "historias dde matematicas", "historias den matematicas", "historias dy matematicas", "historia de matematicas", "historia del matematicas"
"historia dy matematica" » "historia de matematica", "historia y matematica", "historia da matematica"
"historia e matematica" » "historia de matematica", "historia en matematica", "historia y matematica", "historia el matematica"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("historia e matematica") OR ((("historia dy matematica") OR ("historias de matematicas"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"historia e matematica\") OR (((\"historia dy matematica\") OR (\"historias de matematicas\"))))*".
• Removing quotes may allow a broader search: (( historia e matematica ) OR ((( historia dy matematica ) OR ( historias de matematicas ))))*.