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Page 1: Scanned by CamScanner · Foundations of models and modeling perspective on mathematics teaching, learnino. and problem solving. In R. Lesh & H.M. Doerr (Eds.), Beyond constructivism:

Scanned by CamScanner

Page 2: Scanned by CamScanner · Foundations of models and modeling perspective on mathematics teaching, learnino. and problem solving. In R. Lesh & H.M. Doerr (Eds.), Beyond constructivism:

Scanned by CamScanner

Page 3: Scanned by CamScanner · Foundations of models and modeling perspective on mathematics teaching, learnino. and problem solving. In R. Lesh & H.M. Doerr (Eds.), Beyond constructivism:

Scanned by CamScanner

Page 4: Scanned by CamScanner · Foundations of models and modeling perspective on mathematics teaching, learnino. and problem solving. In R. Lesh & H.M. Doerr (Eds.), Beyond constructivism:

Scanned by CamScanner