Geometry, classification, and the classification of geometrical objects are integral aspects of recent curriculum documents in mathematics education. Such curriculum documents, however, leave open how the "work" of classifying objects according to geometrical properties can be accomplished given that the knowledge of these properties is the…

Purpose: The purpose of this scientific monograph is to show new and creative approaches to different school subjects in primary and secondary level. Methodology: Interdisciplinary and international comparative approaches were used. Now according to the 7th Framework Program, the preferred form of Science Education (www.scientix.eu) is preferred…

Four major types of games using two sets of materials (Logical Blocks and word cards) are described: free play with the materials; organization of materials; relations games; and classification by one, two, or three attributes simultaneously. (DT)

This essay considers recent research on classification as related to the study of mathematics in the early grades. The first section deals with the bases and types of classification used by children in free sorting activities. The next section specifically relates to elementary school mathematics. Experiments and theory on class inclusion,…

Various types of computerized sorting techniques are demonstrated with cardboard materials children can manipulate. Bubble, ripple, and binary sorting are each illustrated. (MNS)

The activity of making a set of Logic Blocks is used to lead to a discussion of families of polygons and to questions about tessellations. (DT)

Students in second and third grades were given instruction on sentential logic. Different approaches were used in 3 classrooms at each grade level and a classroom at each level served as a control group. Posttests included tests of classification, sentential logic, and perceptual reasoning; experimental students outperformed controls. (SD)

Examples are given of activities that begin with the classification of objects into sets and lead to concepts and activities in other branches of mathematics, in language arts, and in science. (DT)

Described are many concrete readiness activities within ten broad categories that are designed to provide children with a solid foundation for mathematics and that help prevent learning difficulties in mathematics. Preschool mathematical experiences form the foundation for all studies in mathematics. Without a sufficient number of appropriate…