Instituto para la
Investigación Educativa
y el Desarrollo Pedagógico

Perhaps you should try some spelling variations:
"teaching in mathematical" » "teaching in mathematics", "teaching en matematicas", "teaching en matematica", "teaching and mathematical"
"teaching con mathematica" » "teaching in mathematics", "teaching en matematica", "teaching for mathematica", "teaching to mathematica", "teaching tool mathematica"
"teaching of mathematics" » "teaching in mathematics", "teaching de mathematica", "teaching and mathematics"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"teaching of mathematics\") OR (((\"teaching con mathematica\") OR (\"teaching in mathematical\"))))~".
• Removing quotes may allow a broader search: (( teaching of mathematics ) OR ((( teaching con mathematica ) OR ( teaching in mathematical ))))~.
• Adding a wildcard symbol may retrieve word variants: (("teaching of mathematics") OR ((("teaching con mathematica") OR ("teaching in mathematical"))))*.