solid figures
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SOLID FIGURESChapter 21.1
Standards: MG 2.0, MG 2.5
Tuesday, August 11, 2009
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
VOCABULARY
Face - A flat surface of a solid figure.
Standards: MG 2.0, MG 2.5
Tuesday, August 11, 2009
VOCABULARY
Standards: MG 2.0, MG 2.5
Vertex - a corner where three or more edges of a solid figure meet.
Tuesday, August 11, 2009
VOCABULARY
Standards: MG 2.0, MG 2.5
Edge - the line segment formed where two faces of a solid figure meet.
Tuesday, August 11, 2009
SOLID FIGURES
Name Faces Edges
Cube 6 12
6 squares
Tuesday, August 11, 2009
SOLID FIGURES
Name Faces Edges
Rectangular Prism 6 12
2 squares, 4 rectangles
Tuesday, August 11, 2009
SOLID FIGURES
Name Faces Edges
Square Pyramid 5 8
1square, 4 triangles
Tuesday, August 11, 2009
SOLID FIGURES
Name Faces Edges
Cylinder 2 2
2 circles, 1 rectangle
Tuesday, August 11, 2009
SOLID FIGURES
Name Faces Edges
Cone 1 1
1 circles, 1 rectangle
Tuesday, August 11, 2009
SOLID FIGURES
Name Faces Edges
Sphere 0 0
Tuesday, August 11, 2009
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.
Name Faces Names and # of Faces
Tuesday, August 11, 2009
SOLID FIGURE
Practice:
Which figure goes with the faces.
1.
2.
Tuesday, August 11, 2009
SOLID FIGURE
Practice: Identify the solid figures below.
1. 2. 3.
4.
Tuesday, August 11, 2009
SOLID FIGURES
Try it on your own. PW
Tuesday, August 11, 2009
COMBINE SOLID FIGURES
21.2
Tuesday, August 11, 2009
OBJECTIVE
To identify solid figures within complex solid objects.
Standard MG 2.5, MG 2.6
Tuesday, August 11, 2009
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
LINE SEGMENTS AND ANGLES
21.3
Tuesday, August 11, 2009
OBJECTIVETo identify lines, line segments and rays and to classify
angles as greater than or less than a right angle.
Tuesday, August 11, 2009
VOCABULARY
Line - a straight path extending in both directions with no endpoints.
Tuesday, August 11, 2009
VOCABULARY
point - an exact position or location.
Tuesday, August 11, 2009
VOCABULARY
Line Segment - part of a line between two end points.
Tuesday, August 11, 2009
VOCABULARY
Ray - a part of a line that begins at one endpoints and continues in one direction.
Tuesday, August 11, 2009
VOCABULARY
Angle - a figure formed by two rays with the same endpoint.
Tuesday, August 11, 2009
VOCABULARY
Right Angle - a special angle that forms a square corner.
Tuesday, August 11, 2009
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?
Tuesday, August 11, 2009
ANGLES
Some angles are less than a right angle.
Tuesday, August 11, 2009
ANGLES
Some angles are greater than a right angle.
Tuesday, August 11, 2009
TRY IT OUT.
Tuesday, August 11, 2009