Well-organised waste management is an essential part of sustainable development. The saving of resources and energy is everyone's concern and environmental education is vital to guarantee a sustainable lifestyle in the long run. To find out what similarities and differences in views regarding waste management exist between grammar school pupils…

Many educational researchers have identified issues on classifying schools and some have made use of ad-hoc classification systems in their analyses; however, these solutions are generally one-dimensional, which prohibits them from capturing the full breadth of variation among schools. To understand the amount of variation that exist in schools…