Quality requirements of curricula are analysed in terms of the educational effectiveness of their implementation. Improvement of educational effectiveness is seen primarily as taking place by improving the pupils' opportunity to learn, by increasing their time on task, by structuring and pacing their instruction, by clear and explicit objectives…

First-language acquisition of Turkish 4- to 8-year-olds in a Dutch submersion environment in the Netherlands was studied. Investigation of the development of lexical, morphosyntactic, and pragmatic abilities and comparison with children in Turkey suggested that the acquisition of first-language skills by Turkish children in the Netherlands is…

As part of an educational reform in the Netherlands, teachers were required to implement models of adaptive instruction, including group-based mastery learning. It was expected that mastery learning would raise achievement and reduce differences in achievement among children of different social classes and between girls and boys. In 1987, students…

The document comprises three articles which analyze roles and tasks of teachers in innovative elementary schools in the United States, Netherlands, and England. Innovative schools are interpreted as schools which favor educational practices such as open classrooms, team teaching, parent involvement, nongraded classes, global orientation,…