With many children and adults affected by Attention Deficit Hyperactivity Disorder, researchers strive to understand the underpinnings of ADHD and associated factors on both a basic and applied level. The goal of this volume is to explore some of the broad array of research in the field of ADHD. The 12 chapters cover a variety of topics as varied…

Studied for three years were eight Swedish classes with pupils aged 10-12 using calculators whenever they could be of use, along with experimental textbooks. The experimental classes were as competent as control classes in mental arithmetic and calculations with simple algorithms, and had better understanding of numbers and problem solving. (MNS)

School mathematics is governed by a powerful tradition as regards both content and methods. In the first stage of the Alternative Course of Mathematics (ALM) project, an analysis is being made of the mathematics used in the everyday life of the community. By interviewing adults and children outside school, an analysis is also being made of the way…

This paper describes the BUD project which surveyed childrens' conceptions of division, and of fractions and decimals. The lack of connection between counting skills and conceptual understanding is discussed. The expectations for new algorithms and the basic idea in planning the BUD project are summarized. Some previous studies on counting, the…

A study sought information about the success of the Swedish 9-year compulsory comprehensive school for students with home language other than Swedish. Immigrant adolescents and a sample of Swedish students answered a questionnaire discussing their lines of study after comprehensive school and the students' views on the home language instruction…