Learning Standards by Strand
Geometry for Grades 1-2
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Analyze characteristics and properties of two- and three-dimensional geometric shapes and develop mathematical arguments about geometric relationships |
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Specify locations and describe spatial relationships using coordinate geometry and other representational systems |
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Apply transformations and use symmetry to analyze mathematical situations |
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Use visualization, spatial reasoning, and geometric modeling to solve problems |
Learning Standards
Students engage in problem solving, communicating, reasoning, connecting, and representing as they:
| 2.G.1 |
Describe attributes and parts of two- and three-dimensional shapes, e.g., length of sides, and number of corners, edges, faces, and sides.  |
| 2.G.2 |
Identify, describe, draw, and compare two-dimensional shapes, including both polygonal (up to six sides) and curved figures such as circles.  |
| 2.G.3 |
Recognize congruent shapes.  |
| 2.G.4 |
Identify shapes that have been rotated (turned), reflected (flipped), translated (slid), and enlarged. Describe direction of translations, e.g., left, right, up, down.  |
| 2.G.5 |
Identify symmetry in two-dimensional shapes.  |
| 2.G.6 |
Predict the results of putting shapes together and taking them apart.  |
| 2.G.7 |
Relate geometric ideas to numbers, e.g., seeing rows in an array as a model of repeated addition.  |
Exploratory Concepts and Skills
- Investigate symmetry in two-dimensional shapes with mirrors or by paper folding.
- Explore intersecting, parallel, and perpendicular lines.
- Create mental images of geometric shapes using spatial memory and spatial visualization.
- Recognize and represent shapes from different perspectives.
- Recognize geometric shapes and structures in the environment and specify their location.
- Identify relative positions, e.g., closer, farther, higher, lower.
- Find and name locations on maps and express simple relationships, e.g., near to, far away from, etc.
last updated: November 1, 2000
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