91Ó°ÊÓ

The four major content goals in geometry for all grade levels are: A. two-dimensional shapes, three-dimensional shapes, Pythagorean Theorem, and symmetry. B. polygons, solids, lines, and spatial sense. C. shapes, properties, conjectures, and proof. D. shapes and properties, transformation, location, and visualization.

The most important factor in moving students up the van Hiele levels is: A. the use of manipulative materials. B. students' background knowledge of shapes. C. geometric experiences that teachers provide to the students. D. repetition and practice.