Instituto para la
Investigación Educativa
y el Desarrollo Pedagógico

Perhaps you should try some spelling variations:
"teaching den matematica" » "teaching de matematica", "teaching de matematicas", "teaching en matematicas", "teaching den matematicas", "teaching del matematico", "teaching in matematica", "teaching and matematica", "teaching of matematica"
"teaching en matematica" » "teaching en matematicas", "teaching e matematica", "teaching el matematico", "teaching in matematica", "teaching and matematica", "teaching of matematica"
"teaching la matematica" » "teaching las matematicas", "teaching de matematicas", "teaching en matematicas", "teaching of matematica", "teaching in matematica", "teaching to matematica"

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

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