Instituto para la
Investigación Educativa
y el Desarrollo Pedagógico

Perhaps you should try some spelling variations:
"history en matematicas" » "history de matematicas", "history las matematicas", "historia en matematicas", "history and matematicas", "history of matematicas"
"historia el matematico" » "historia la matematica", "historia del matematico", "historia en matematico", "historia de matematico"
"history a matematico" » "history y matematico", "history la matematica", "history da matematica", "history and matematico", "history of matematico"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("historia el matematico") OR ("history a matematico"))) OR ("history en matematicas"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"historia el matematico\") OR (\"history a matematico\"))) OR (\"history en matematicas\"))".
• Removing quotes may allow a broader search: (((( historia el matematico ) OR ( history a matematico ))) OR ( history en matematicas )).
• Adding a wildcard symbol may retrieve word variants: (((("historia el matematico") OR ("history a matematico"))) OR ("history en matematicas"))*.