 # Reviewing Properties of 3D figures

## Presentation on theme: "Reviewing Properties of 3D figures"— Presentation transcript:

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

NAME THAT SHAPE 2 3 8 1 5 7 6 4

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

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

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

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

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)

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

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.

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

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

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

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.

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

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

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

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

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