## Common Core State Standards for Mathematics

Grade(s) K resources related to the following standard:
Geometry
Identify and describe shapes (squares, circles, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres).
1. Describe objects in the environment using names of shapes, and describe the relative positions of these objects using terms such as above, below, beside, in front of, behind, and next to.

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This activity helps students develop concepts and language related to position by experimenting with the size and relationships between two circles in a qualitative way. They use terms such as outside, touching and overlapping. The Teachers' Notes page includes suggestions for implementation and discussion questions. Students then can move to a follow-up activity, 3 Rings, cataloged separately.
Activity
This interactive Flash lesson helps students to visualize the faces and edges that make up cubes and to distinguish cubes from other shapes. A pdf teacher guide is available at MathActive Lessons for Grades 3-4 (cataloged separately), which also includes links to unvoiced, Navajo, and Spanish versions of the lesson (see #1, 3, 4).
Activity, Interactive Media
Grade Level: K, 1, 2, 3, 4
This interactive Flash lesson helps students to distinguish circles from other shapes in a real world environment. The animated pages give printed and voiced instructions. A pdf teacher guide is available at MathActive Lessons for Grades K-2 (cataloged separately), which also includes links to unvoiced, Navajo, and Spanish versions of the lesson (see #1, 3, 4).
Activity, Interactive Media
This interactive Flash lesson helps students to distinguish triangles from other shapes in a real world environment. The animated pages give printed instructions in English. A teacher guide is available [see #7 at MathActive Lessons for Grades K-2 (cataloged separately)].
Activity, Interactive Media
In this interactive application young children become familiar with 3-dimensional shapes by matching a variety of shapes in order to build a sandcastle. There are two levels of play, parent pointers, and hints to help out along the way.
Activity, Interactive Media
This problem helps children begin to understand the various properties of common geometric solid shapes. It also promotes naming, discussion and experimentation concerning their features, and requires them to justify their ideas. It asks students to judge the stability of nine configurations made from six common solids. The Teachers' Notes page includes suggestions for implementation, discussion questions, ideas for extension and support, and printable sheets.
Activity
This interactive Flash applet helps students explore patterns and symmetry by placing colored spots onto butterfly wings. There are three levels of challenge, the first using one color, and the second using two colors. The first two levels ask students to match spot patterns. The third level provides the student the opportunity to create other color combinations and spot patterns and asks students to count the spots they have used.
Activity, Interactive Media