Describes and assesses the effectiveness of a staff development program for Dutch teachers in mixed-age classes as it relates to areas of classroom management, instruction, and pupils' on-task behavior. Results of the quasi-experimental, treatment-control group investigation showed that the training program was an effective staff development tool.…

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)

Presents the findings of a six-year staff development program for multigrade teachers. Discovers a significant increase in the time on task levels of the pupils and the instructional and classroom management skills of the teachers. Discusses the implications of, and problems with, the study. (MJP)