Section D- Spatial Sense Crossword

An intuition that numbers can be operated on, compared, and used inflexible ways for communication and to solve problems.
An intuition about space, the relationship among objects or positions in space, a sense of size, proportion, and distance.
The ability to imagine or call up a mental picture of the arrangment of objects and their features from different perspectives.
Understanding and operating on the relationships between positions of objects in space with respect to one's own position.
Comprehension and performance of imagined movements of objects in two- and three- dimensional space.
The ability to recognize features of figures such as closed or open and curved or linear.
The development of a two-dimensional framework and metric reasoning for making spatial connections.
Van Hiele's level of geometric thinking children percieve geometric shapes but attend to only part of the shapes' characteristics.
Van Hiele's level of geometric thinking where students can characterize shapes by their properties but do not see the relationships between classes of figures.
Van Hiele's level of geometric thinking where students can classify figures and give informal arguments.
Van Hiele's level of geometric thinking where students can use an axiomatic system to establish theorems and construct original proofs.
Van Hiele's level of geometric thinking where students can reason formally about mathematical systems, thinking about figures and relationships without reference models.