Mathematics Pacing Resource Document
1.G.1
Standard: 1.G.1: Identify object as two-dimensional or three-dimensional. Classify and sort two-dimensional and three-dimensional objects by shape, size,
roundness and other attributes. Describe how two-dimensional shapes make up the faces of three-dimensional objects.
Teacher Background Information:
Geometry concepts help students develop spatial sense. Spatial sense is an intuition about shapes and relationships among shapes. Spatial sense includes
the ability to visualize objects and see spatial relationships. Students should use appropriate language to describe a given three-dimensional shape: number
of faces, number of vertices/points, number of edges.
Example:
 A cylinder may be described as a solid that has two circular faces connected by a curved surface (which is not considered a face). Students may say, “It
looks like a can.”
Students should compare and contrast two-and three-dimensional figures using defining attributes.
Examples:
 List two things that are the same and two things that are different between a triangle and a cube.

Given a circle and a sphere, students identify the sphere as being three-dimensional but both are round.
Process Standards to Emphasize with Instruction of 1.G.1
1.PS.3: Construct viable arguments and critique the reasoning of others.
1.PS.7: Look for and make use of structure.
Indianapolis Public Schools
Curriculum and Instruction
Mathematics Pacing Resource Document
1.G.1
Standard: 1.G.1: Identify object as two-dimensional or three-dimensional. Classify and sort two-dimensional and three-dimensional objects by shape, size,
roundness and other attributes. Describe how two-dimensional shapes make up the faces of three-dimensional objects.
Lesson Plans/Print Activities:
Web-based Practice:

https://www.engageny.org/resource/grade-1-mathematics-module-5topic-lesson-2 Find and name two-dimensional shapes including
trapezoid, rhombus, and a square as special rectangle, based on defining
attributes of sides and corners.

https://www.engageny.org/resource/grade-1-mathematics-module-5topic-lesson-3 Find and name three-dimensional shapes including cone
and rectangular prism, based on defining attributes of faces and points.

https://www.engageny.org/resource/grade-1-mathematics-module-5topic-b-lesson-6 Create a composite shape from three-dimensional shapes
and describe the composite shape using shape names and positions.

http://www.freebookez.net/pdf/3560302901/ Shape and Space

http://www.freebookez.net/pdf/1134515576/ Geometry: A First Grade
Unit Plan

https://www.illustrativemathematics.org/illustrations/1104 Illustrative
Mathematics Task
Indianapolis Public Schools

Identify 2-dimensional shapes
http://www.ixl.com/math/grade-1/identify-2-dimensional-shapes

Shapes/Geometry
http://www.abcya.com/shapes_geometry_game.htm
Curriculum and Instruction