Today's language arts teacher must adapt himself to the individually-paced classroom environment of the future by utilizing the newest procedures in his field within the current structures of the heterogeneous, homogeneous, or "core"-type classroom. The teacher of a heterogeneous group must insure individual student progress by differentiating the…

At the end of the 1992-93 school year, Dutch schools finished their preparations for a new core curriculum for the first stage of secondary education. One of the problems teachers faced in implementing this curriculum was the problem of class heterogeneity. How teachers dealt with heterogeneity was studied through an examination of the use of…