Instituto para la
Investigación Educativa
y el Desarrollo Pedagógico

Perhaps you should try some spelling variations:
"history den matematicass" » "history de matematicas", "history de matematica", "history en matematica", "history dde matematicass", "history dlas matematicass", "historia del matematicass"
"historia en matematicas" » "historia de matematicas", "historia las matematicas", "historia del matematicas", "historia y 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 den matematicass") OR ("history e matematica"))) OR ("historia en matematicas"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"history den matematicass\") OR (\"history e matematica\"))) OR (\"historia en matematicas\"))*".
• Removing quotes may allow a broader search: (((( history den matematicass ) OR ( history e matematica ))) OR ( historia en matematicas ))*.