The document discusses the development of spatial and geometric thinking in children. It outlines four stages of development:
1) Preaxial Schema (age 4) where children represent object shapes and locations within a rectangle.
2) Uniaxial Schema (age 6) where children can specify internal shapes, spatial relations, and relative locations to field edges.
3) Biaxial Schema (age 8) where children use two reference lines for foreground and background.
4) Integrated Biaxial (age 10) where children coordinate the entire field using horizontal and vertical axes.
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2. THE DEVELOPMENT OF SPATIAL AND GEOMETRIC THINKING : CO-ORDINATING SPACE IN DRAWINGS
3. STAGES OF DEVELOPMENT IN CHILDRENS SPATIAL THINKING Preaxial Schema (4 years) Uniaxial schema (6 years) Biaxial Schema (8 years) Intergrated Biaxial (10 years)
4. The child represents the component shapes of an object and the locations of objects within a rectangular field. Preaxial Schema (4 years)
6. The child can specify an objects internal shapes and spatial relations and its location relative to the edge of the field. Example: the relative heights of people a shown from the same baseline. Uniaxial Schema (6 years)
8. The child mentally sets up two separate location fields within the main field usually as foreground and background and so uses two separate reference lines for heights. Biaxial Schema (8 years)
10. The child co-ordinates the whole field with both horizontal and vertical axes used as references. Drawings contain middle ground linking foreground and middle ground. Intergrated Biaxial (10 years)