## 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).
2. Correctly name shapes regardless of their orientations or overall size.

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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 Java applet helps students learn about sequences and patterns through analysis of attributes. The user analyzes the existing pattern and must complete the "train" by dragging the appropriate shapes into place. The user is required to discern which attribute is used to create the pattern (color, shape, or number) as well as determine how to extend it.
Activity, Interactive Media
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
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 activity gives students practice naming and using shape and color attributes to create patterned sequences. The first challenge asks students to use attribute differences to extend a sequence. A second, more open-ended challenge asks students to maximize the length of their sequences under a further constraint. An interactive applet is provided as an alternative to physical manipulatives. The Teachers' Notes page includes suggestions for implementation and discussion questions.
Activity, Interactive Media
Grade Level: K, 1, 2, 3
This familiar game can be played by one or two players taking turns. Players choose to match equivalent representations of numbers, shapes, fractions, or multiplication facts. The game can be played in clear pane mode, or for added challenge, with the windows closed.
Game
Grade Level: K, 1, 2, 3, 4, 5