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1-GM-1-3

Page history last edited by Tashe Harris 6 years, 2 months ago

1.GM.1.3 Compose structures with three-dimensional shapes.

In a Nutshell

First grade students describe the characteristics of three-dimensional shapes including cubes, cones, spheres, rectangular prisms, cylinders, etc. Students compose and decompose these three- dimensional shapes. These characteristics include the number of sides and vertices (corners). They put shapes together and take shapes apart. For example, students can build prisms by stacking layers of cubes; compose an ice cream cone by combining a cone and half of a sphere.

Student Actions	Teacher Actions
Develop deep and flexible conceptual understanding by using solids, or geometric solid models and other materials to compose and decompose other three-dimensional solids in a variety of settings through small group games and explorations. Develop the ability to communicate mathematically as students use appropriate vocabulary to describe three-dimensional solids, such as, faces, vertices, vertex, corner, edge, side, rectangular prism, cube, cone, cylinder, etc. Develop the ability to make conjectures, model, and generalize by decomposing larger shapes into smaller shapes, investigating, and predicting the results of putting together and taking apart two- and three-dimensional shapes.	Implement tasks that promote reasoning and problem solving by providing opportunities for student explore, to see and feel, to build and take apart, and to make observations with a variety of materials.Teacher will emphasize properties of shapes rather than simple identification through small group and whole group instruction. Facilitate meaningful mathematical discourse as students discuss three-dimensional solids in order to gain understanding and build shared understanding. Posing purposeful questions such as, Where can we find solids in the real world? How can a solid be described? Teacher could demonstrate how to play shape detective and model how to describe a solid.
Key Understandings	Misconceptions
Recognize, name, build, draw, compare, and sort three-dimensional shapes, such as cones, spheres, rectangular prisms, and cubes. Describe attributes and parts of three-dimensional shapes, such as, face, edge, vertices, and vertex. Number of shapes on the sides students see. Investigate and predict the results of putting together and taking apart three-dimensional shapes (should be hands-on).	The shape changes as the size or location changes.