1. Reviewing Properties of 3D figures
MANY FACES
Reviewing Properties of 3D figures

2. NAME THAT SHAPE 2 3 8 1 5 7 6 4

3. Today’s Lesson
Today students will review the properties of 3 dimensional figures.

4. Vocabulary Polyhedron Polygon Face Base Pyramid Prism Cylinder Cone
Vertex (Vertices)
Edge
Triangular Prism
Triangular Pyramid
Rectangular Prism
Cube
Square Pyramid
Sphere

5. Course 3
8-4
Three-Dimensional Figures
“Solid”
(70’s slang)

6. Course 3
8-4
Three-Dimensional Figures
"Solid"
(Science)

7. A solid is a closed three dimensional (3D) figure.
Course 3
8-4
Three-Dimensional Figures
Solid
A solid is a closed three dimensional (3D) figure.
(Math Term)

8. Solids
Two-Dimensional (2D)
Three Dimensional (3D)

9. Parts of a 3 Dimensional Figure
Three-dimensional figures have faces, edges, and vertices.
A FACE is a flat surface.
An EDGE is where two faces meet.
A VERTEX is where three or more edges meet.

10. Vertices, Faces & Edges
Write the number of Faces, Edges and vertices for each 3-D Figure in Activity I.

11. Naming 3D Figures Poly hedron Polyhedron faces many
Some 3D Figures have special names,
Poly
hedron
Polyhedron
faces
many

12. A Polyhedron is a 3D figure made of Polygons.
Poly-many; gon-angle: a 2D shape with many angles

13. Naming 3D Figures Polyhedrons Non-Polyhedrons Ask the students:
What shapes are in the non-polyhedron category?
What makes Polyhedrons different from non-polyhedrons? The circles
Students should recognize that polyhedrons do not have figures with circles.

14. Cylinders & Cones Cylinders 2 circular bases 1 face Cone
Sphere 3D circle

15. Polyhedrons Breakdown
Prisms
Rectangular Faces
Two Bases
Pyramids
Triangular Faces
One Base

16. A Polyhedron is named for its base.
Naming A Polyhedron
A Polyhedron is named for its base.
Bases: Hexagon
Faces: Rectangles
Hexagonal
(Shape of Base)
Prism

17. A Polyhedron is named for its base.
Naming A Polyhedron
A Polyhedron is named for its base.
Base: Square
Faces: Triangles
(Shape of Base)
Pyramid
Square

18. NAMING POLYHEDRONS
Write the name of each 3-D Figure on your activity sheet.