Instituto para la
Investigación Educativa
y el Desarrollo Pedagógico

Perhaps you should try some spelling variations:
"history de matematicas" » "history las matematicas", "history dde matematicas", "history den matematicas", "history dy matematicas", "historia de matematicas", "history of matematicas", "history a matematicas"
"history dy matematicas" » "history y matematicas", "history de matematicvas", "history en matematicas", "history of matematicas", "history a matematicas"
"history e matematica" » "history de matematica", "history en matematica", "history y matematica", "history a matematica", "historia e 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 de matematicas") OR ("history dy matematicas"))) OR ("history e matematica"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"history de matematicas\") OR (\"history dy matematicas\"))) OR (\"history e matematica\"))".
• Removing quotes may allow a broader search: (((( history de matematicas ) OR ( history dy matematicas ))) OR ( history e matematica )).
• Adding a wildcard symbol may retrieve word variants: (((("history de matematicas") OR ("history dy matematicas"))) OR ("history e matematica"))*.