Seating that allows movement is commonly suggested to enhance postural activation, attention, and behavior. The study examined the effects of ball chair seating on legibility, student behavior, and classroom productivity. In two consecutive years, in an ABAB design, first grade students alternated by weeks between standard seating (A phases) and…

The effects of multi-age grouping on achievement and self-concept were studied. The achievement variables examined were reading and mathematics achievement as measured by the Stanford Achievement Tests. The Piers-Harris Children's Self-Concept Scale was used to measure self-concept. The groups studied consisted of single-age and multi-age…