Instituto para la
Investigación Educativa
y el Desarrollo Pedagógico

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

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

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