Proportional Word Problem Solving Through a Modeling Lens: A Half-Empty or Half-Full Glass?

Degrande, T., Verschaffel, L., & Van Dooren, W. (2016). Proportional Word Problem Solving Through a Modeling Lens: A Half-Empty or Half-Full Glass? In Posing and Solving Mathematical Problems (pp. 209–229). Springer International Publishing. https://doi.org/10.1007/978-3-319-28023-3_13