An observational study of 12 mixed-age and 12 single-age Dutch primary reading/language and mathematics classes revealed that time-on-task levels were lower for the mixed-age classes. However, no significant differences in achievement test scores were found. (IAH)

This paper describes the long-term effects of a staff-development program, "Dealing with Multi-Grade Classes," based on selected findings from teaching-effectiveness research in schools with multi-grade or mixed-age classes. The short-term effects were examined in two studies conducted in 1986-87 and 1989-90. In 1992 a follow-up study…

A quasi-experimental, treatment-control group investigation was designed to test the effects on Dutch primary school teachers of the staff development program "Dealing with Mixed-Age Classes." Research findings from mixed-age classes, effective teaching, and classroom management and organization were translated into teaching behaviors.…

Investigated how students and teachers in mixed-age classes spent their learning time during reading, language arts, and mathematics. No significant differences between single- and multi-aged classes was found. Concludes that teachers found working in mixed-age classes very difficult, with most working as if they were teaching two different…

Results showed hardly any differences in time-on-task behavior between third and fourth grade pupils in mixed age single age mathematics and language arts classes in the Netherlands. Students in mixed age classes spent more time working individually. The ability level of the students had little impact on time-on-task behavior. (Author/RM)

This paper presents the results of a school improvement study (main field test) directed at schools with mixed-age classes in the context of inservice teacher education. A quasi-experimental treatment control group investigation was designed to test the effects of the staff development program "Dealing with Mixed-age Classes," and the…