Florida B.E.S.T. MA.5.GR.1.2
The Standard
Identify and classify three-dimensional figures into categories based on their defining attributes. Figures are limited to right pyramids, right prisms, right circular cylinders, right circular cones and spheres.
Florida B.E.S.T. Standards for Mathematics
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students examine bases, flat faces, curved surfaces, edges, and vertices. They use those attributes to name a solid as a prism, pyramid, cylinder, cone, or sphere and explain their choice.
What Mastery Looks Like
- A student can sort solids correctly even when they are rotated, resized, or shown from an unfamiliar view. The student supports each choice with defining features, such as congruent parallel bases or triangular faces meeting at an apex.
Common Misconceptions
- Students may call any solid with a point a pyramid, confusing cones with pyramids. They may classify by orientation or overall shape instead of bases and surfaces. They may also treat a circle and sphere as the same figure.
How to Assess It
- Give students rotated sketches of a triangular prism, square pyramid, cylinder, cone, and sphere. Ask them to name each and give a defining attribute for two.
Lesson moves
Ways to Teach It
Give pairs a bag of solid models; students sort them, label each group, and record the shared bases, faces, edges, and vertices.
Display a cone and square pyramid, then ask, "How are they alike, and which attributes prove they belong in different groups?"
Play Mystery Solid: read clues one at a time, and students hold up the matching solid name when they can identify it.
Students photograph or sketch classroom objects, match each to a solid, and explain where the model fits and where it differs.
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Printable MA.5.GR.1.2 Worksheet
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