
doi: 10.5951/mt.84.3.0210
The purpose of this article is to reexamine the van Hiele theory of levels of geometric thinking and to compare this theory with the geometry curriculum recommended by the NCTM's Curriculum and Evaluation Standards for School Mathematics (1989). Examples of activities for students are included to illustrate the ways in which van Hiele's theory can be translated into classroom practice.
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 17 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Top 10% | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Top 10% | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
