Instituto para la
Investigación Educativa
y el Desarrollo Pedagógico

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

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

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