00703nam a22001937a 4500 OSt 20260609115455.0 260609b |||||||| |||| 00| 0 eng d 0871206552 Chuka university library LB 1623.5 .T72003 Tomlison Carol Ann 27850 Differentiation in practice A resource guide for differentiating curriculum Alexandria ,Virginia USA Association for supervision and curriculum development 2003 various pagings minimal illustrations middle school education-united states 27851 ability grouping in education-united states 27852 lcc BK 0 23611 23611