Download - Warm-up Friday 2-24-11
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Warm-up Friday 2-24-11• Write down some differences between
2-dimensional and 3-dimension shapes. Name at least 3 dimensional shapes
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Split LevelHead over Heals
Right beside me
Ice Cube
Forgive and Forget
Try to Understand
Three Blind Mice
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Solid Figures
M6G2: Students will further develop their understanding of solid figures
E.Q. What are the basic solid figures, and what are their properties?
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Plane FiguresTwo-dimensional Shapes (2D)
• These shapes are flat and have no depth.
• They have two dimensions – length and width.
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“Solids”Three-dimensional Shapes (3D)
• These shapes are also called “solids”
• They have three dimensions – length, width and height (or depth).
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Face
• Part of a shape that is flat
• For example: A cube has 6 faces
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Edge• The line where two
faces meet.• A cube has 12 of
edges.
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Vertex (Vertices)
• The place where three or more edges meet.
• This pyramid has 4 of these.
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Cube• A three-dimensional
shape which has 6 square faces all the same size.
Some faces parallel
Some edges parallel
Some faces perpendicular
Some edges perpendicular
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Rectangular Prism• A three-dimensional
shape which has 6 rectangular faces.
Some faces parallel
Some edges parallel
Some faces perpendicular
Some edges perpendicular
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Cylinder• A three-dimensional
shape with circular ends of equal size.
Some faces parallel
Some edges parallel
Some faces perpendicular
No edges perpendicular
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Cone• A three dimensional
shape with a circle at its base and a pointed vertex.
No perpendicular faces or edges
No parallel faces or edges
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Square base pyramid
No faces perpendicular
Some edges perpendicular
No faces parallel
Some edges parallel
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Pyramid• A three-dimensional
shape which has a polygon for its base and triangular faces which meet at one vertex.
•E.g. Triangular pyramid• Square pyramid• Hexagonal pyramid• Pentagonal pyramid
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CONEa three-dimensional geometric shape that tapers smoothly from a flat, usually circular base to a point called the apex or vertex
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Prism• A three dimensional
shape that has the same cross-section all along its length.
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Three Dimension Figures Have Faces, Edges, and sometimes
one or more Vertexes or Vertices
REMEMBER:
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Ticket Out The Door
Name as least 4 “SOLIDS” that you see in the real world.
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The end of lesson one on solids 2/24/11
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Volume of Pyramids and Cones
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Sphere• A perfectly round
three-dimensional shape, like a ball. It has only one curved face.
No perpendicular faces or edges
No parallel faces or edges
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Cube
A space figure with six sides, eight vertices, all sides equilateral.
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Rectangular Prism
A rectangular prism is a space figure with six faces, eight vertices, and opposite
sides parallel.
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Cylinder
A cylinder is a space figure with two faces, no vertices.
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Pyramid
A space figure with a base, five faces, five vertices.
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Hemisphere• A three-dimensional
shape that is half a sphere.
No parallel faces or edges
No perpendicular faces or edges
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Perpendicular• A line that is drawn in
a right angle to another line .
• In solid shapes edges could be at a right angle to one another.
• Faces could also be at right angles to one another.
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Parallel• These type of lines
stay the same distance apart for their whole length. They do not need to be straight or the same length.