Didactical obstacles and phenomena

Author:Aitzol Lasa

Perimeter vs. area (Dickson, 1991)

Perimeter vs. area (Dickson, 1991)

Non-perpendicular distance

Non-perpendicular distance

Worksheet 1 - paper and pencil

Worksheet 1 - paper and pencil

Worksheet 2 - computer

Worksheet 2 - computer

Worksheet 3 - final report

Worksheet 3 - final report

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