Geometry helps people describe the world around them through the study of geometric shapes, structures, and their characteristics and relationships. Through the study of geometry, students will learn about shapes and dimensions around them and how to analyze spatial relationships in everyday life. Spatial visualization—building and manipulating mental representations of two-and three-dimensional objects and perceiving an object from different perspectives—is an important aspect of geometric thinking. An understanding of the attributes and relationships of geometric objects can be applied to diverse contexts.
In Kindergarten, students should be able to identify and describe basic 2- and 3-dimensional shapes. They need to have many experiences with geometric manipulatives and composing shapes from other shapes. They should also be discussing relative positions in space through conversations, demonstrations, and stories. Children come to school with varying degrees of spatial sense development. Through explorations using building blocks, pattern blocks, or 3-dimensional solids (like instant oats cylinders or cereal boxes), children can develop initial understandings of these shapes and their attributes.