Instituto para la
Investigación Educativa
y el Desarrollo Pedagógico

Perhaps you should try some spelling variations:
"historia in mathematical" » "historia in mathematics", "historia en matematica", "historia con mathematica", "historia un mathematical", "historia ii mathematical", "historia con mathematical"
"historia en matematicas" » "historia de matematicas", "historia las matematicas", "historia del matematicas", "historia y matematicas", "historia den matematicas", "historia yn matematicas", "historia deln matematicas"
"historia e matematica" » "historia de matematica", "historia en matematica", "historia y matematica", "historia del matematica"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("historia e matematica") OR ((("historia in mathematical") OR ("historia en matematicas"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"historia e matematica\") OR (((\"historia in mathematical\") OR (\"historia en matematicas\"))))*".
• Removing quotes may allow a broader search: (( historia e matematica ) OR ((( historia in mathematical ) OR ( historia en matematicas ))))*.