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compare, contrast, sort, and classify two-dimensional shapes and three-dimensional objects using two or more attributes
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You are given several 3-D objects. Compare and
group them using two attributes: the number of sides they have, and whether they can roll. Fill in the chart, showing the number in each group.
| Less than 5 sides | 5 sides or more |
| Will Roll | | |
| Won't Roll | | |
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identify, count, and describe the faces, vertices, edges, sides, and angles for polygons and solids
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Count the number of faces and vertices. Is there a pattern? Explain.
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describe and name three-dimensional objects (cubes, spheres, cones, cylinders, pyramids, and prisms) and use appropriate two-dimensional names to describe their faces
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Choose an assortment of objects and draw, trace, or make prints of the faces. Identify and name the faces.
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describe and name pyramids and prisms by the shape of the base
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Identify the shape of the base, and name the prism
or pyramid. Cut out each of the following nets. Fold
each one to make an object. What object does each
net make? Make a different net for the same object.
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construct skeletons of a three-dimensional object from a model and relate skeletons (nets) to models
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Examine a solid tetrahedron. Use toothpicks and modelling clay to make a skeleton of the shape. Break some of the joints to turn the skeleton into a 2-D net of the tetrahedron.
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demonstrate through dismantling that a rectangular solid has more than one net
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[No example for this prescribed learning outcomes.]
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make identical, congruent two-dimensional shapes
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Draw two squares that are congruent. How do you know they are congruent?
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construct and rearrange a design using a set of two-dimensional shapes
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Cut apart shapes and try to reassemble them from the pieces, or use the pieces to create new shapes. Explain what clues you used to help decide how the shape should be reassembled.
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recognize congruent three-dimensional objects and two-dimensional shapes in the environment
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Identify shapes in your classroom that are congruent. Can you tell they are congruent?
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explore the concepts of points, lines, perpendicular lines, parallel lines, and intersecting lines on three-dimensional objects
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Choose an empty container to show:
- parallel faces or lines
- perpendicular faces or lines
- intersecting faces or lines
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Shape and Space (3-D Objects and 2-D Shapes)
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