Attributes

🟦 What Are Attributes?

An attribute is a feature or detail that tells us something about a shape or object.
In math, attributes help us describe, compare, and sort.

🔵 Attributes of 2D Shapes (Flat Shapes)

We describe 2D (flat) shapes using:

Shape

Sides

Corners

Same Length Sides?

Triangle

3

3

Sometimes

Square

4

4

Yes (all the same)

Rectangle

4

4

Yes (2 short, 2 long)

Circle

0

0

No sides or corners

Hexagon

6

6

Yes

✅ These shapes are flat. We count their sides and corners to describe them.

🔷 Attributes of 3D Shapes (Solid Shapes)

We describe 3D (solid) shapes using:

Shape

Faces

Edges

Corners (Vertices)

Cube

6 (all square)

12

8

Sphere

1 (curved)

0

0

Cylinder

2 flat + 1 curved face

2

0

Cone

1 flat + 1 curved face

1

1

Rectangular Prism

6 (rectangles)

12

8

✅ These shapes are solid. We describe them using faces, edges, and corners.

🧠 Sorting by Attributes

We can group shapes based on different attributes.

Attribute

Example Groups

Number of sides

Triangle (3), Square (4), Hexagon (6)

Number of corners

Circle (0), Triangle (3), Rectangle (4)

Can it roll?

Yes: Sphere, Cylinder, Cone

Same sides or not?

Yes: Square, Hexagon

No: Rectangle

Flat or solid shape?

Flat: Triangle

Solid: Cube

📘 Vocabulary Review

Word

Meaning

Side

A straight edge of a flat shape

Corner

Where two sides meet (also called vertex)

Face

A flat surface on a solid shape

Edge

Where two faces meet

Attribute

A way to describe or sort a shape

✏️ Practice Time

Describe the object based on attributes:

1. A flat shape with 4 equal sides → _______________
   
   

2. A solid shape with 0 corners → _______________
   
   

3. A flat shape with 3 corners → _______________
   
   

4. A shape with 6 flat square faces → _______________
   
   

Answers:

1. Square
   
   

2. Sphere
   
   

3. Triangle
   
   

4. Cube