This document provides an overview of solid figures and their properties. It defines key terms like face, vertex, and edge as they relate to solid figures. Examples of different solid figures are given along with the number of faces and edges each has, including cubes, rectangular prisms, square pyramids, cylinders, cones, and spheres. Activities are described to have students identify and trace the faces of solid figures. Practice problems are provided to identify solid figures from their faces. The document aims to help students describe properties of solid figures and name the faces that make up different solid figures.

1. SOLID FIGURES
Chapter 21.1
Standards: MG 2.0, MG 2.5
Tuesday, August 11, 2009

2. OBJECTIVE
To describe properties of solid figures and name the
faces that make up solid figures.
Standards: MG 2.0, MG 2.5
Tuesday, August 11, 2009

3. VOCABULARY
Face - A flat surface of a solid figure.
Standards: MG 2.0, MG 2.5
Tuesday, August 11, 2009

4. VOCABULARY
Vertex - a corner where three or more edges of a solid
figure meet.
Standards: MG 2.0, MG 2.5
Tuesday, August 11, 2009

5. VOCABULARY
Edge - the line segment formed where two faces of a
solid figure meet.
Standards: MG 2.0, MG 2.5
Tuesday, August 11, 2009

6. SOLID FIGURES
Name Faces Edges
Cube 6 12
6 squares
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7. SOLID FIGURES
Name Faces Edges
Rectangular
Prism 6 12
2 squares, 4 rectangles
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8. SOLID FIGURES
Name Faces Edges
Square
Pyramid 5 8
1square, 4 triangles
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9. SOLID FIGURES
Name Faces Edges
Cylinder 2 2
2 circles, 1 rectangle
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10. SOLID FIGURES
Name Faces Edges
Cone 1 1
1 circles, 1 rectangle
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11. SOLID FIGURES
Name Faces Edges
Sphere 0 0
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12. SOLID FIGURES
Activity
Materials: Solid Figures, Large Paper, Crayons
Steps: Traces the faces of several solid figures.
Then name up the faces that make up each solid
figure.
Names and # of
Name Faces Faces
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13. SOLID FIGURE
Practice:
Which figure goes with the faces.
1.
2.
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14. SOLID FIGURE
Practice: Identify the solid figures below.
1. 2. 3.
4.
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15. SOLID FIGURES
Try it on your own. PW
Tuesday, August 11, 2009

16. COMBINE SOLID
FIGURES
21.2
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17. OBJECTIVE
To identify solid figures within complex solid objects.
Standard MG 2.5, MG 2.6
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18. COMBINE SOLID FIGURES
When you know how to identify solid figures, you’ll
notice them in objects around you.
How is a cube different from a square?
If you were building a model of a rocket from solid
figures, what two figures might you use?
Tuesday, August 11, 2009

19. LINE SEGMENTS AND
ANGLES
21.3
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20. OBJECTIVE
To identify lines, line segments and rays and to classify
angles as greater than or less than a right angle.
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21. VOCABULARY
Line - a straight path
extending in both
directions with no
endpoints.
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22. VOCABULARY
point - an exact position or location.
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23. VOCABULARY
Line Segment - part
of a line between two
end points.
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24. VOCABULARY
Ray - a part of a line that
begins at one endpoints and
continues in one direction.
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25. VOCABULARY
Angle - a figure formed by two rays with the same endpoint.
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26. VOCABULARY
Right Angle - a special angle that forms a square corner.
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27. LINE SEGMENTS
1. What figure is drawn?
2. How many sides does the
figure have?
3. Home many line segments?
How are the lines and line
segments alike?
How are they different?
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28. ANGLES
Some angles are less than a right angle.
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29. ANGLES
Some angles are greater than a right angle.
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30. TRY IT OUT.
Tuesday, August 11, 2009