1. Adey, P. and Shayer, M. (1990), “Accelerating the development of formal thinking in middle and high school students”, Journal of Research in Science Teaching, Vol. 27 pp. 267‐85.
2. Ahern‐Rindell, A. (1998), “Applying inquiry‐based and cooperative group learning strategies to promote critical thinking”, Journal of College Science Teaching, Vol. 28 No. 3, pp. 203‐7.
3. Allen, A. (1999), “Institutional change and leadership in greening the campus”, in Filho, W.L. (Ed.), Sustainability and University Life, Peter Lang, Frankfurt am Main, pp. 105‐28.
4. Arambula‐Greenfield, T. (1996), “Implementing problem‐based learning in a college science class”, Journal of College Science Teaching, Vol. 26 No. 1, pp. 26‐30.
5. Balsas, C. (2001), “Towards more sustainable transportation: lessons learned from a teaching experiment”, International Journal of Sustainability in Higher Education, Vol. 2 No. 4, pp. 316‐28.