LEARNING GEOMETRY

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LEARNING GEOMETRYwith a little help from
technology

• By Gregory Nussberger

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Technology Makes Learning Geometry Easy

• Standard GEOMETRY
• Competency (M4-P1)
• Interpret and draw three-dimensional objects
• Performance Objective (PO1) Identify sketches of
  prisms, pyramids, cones, cylinders, and spheres

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What are these strange objects?

• Cylinder, Cone, and Sphere
• A cylinder is a solid (three-dimensional) figure
  with two congruent circular bases that lie in
  parallel planes.
• A cone is a solid figure with a circular base and
  a vertex that lies in a different plane than the
  base.
• A sphere is the set of all points in space that
  are a given distance (radius) from a fixed point
  (center).

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Lets Look at Some Examples of a Cylinder
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Some Examples of a Cone
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Lets Look at Some Examples of a Sphere
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Your Assignment for Today
Classwork Insert 6 additional slides to your
PowerPoint Student Electronic Portfolio (SEP).
Use the following information to guide you
through the process. Slide 38 - Title Slide,
Learning Geometry Slide 39 - Are the previously
mentioned solids polyhedra (a solid figure
bounded by plane polygons or faces)? Slide 40 -
How are the 3 types of solids alike and how they
are different? Slide 41 - Sketch a cylinder with
a height that is twice the diameter of the
base. Slide 42 - Draw a cone with a height that
is half the diameter of the base. Slide 43 -
Name a common object that has the shape of a
sphere and insert a picture of that object, use
clip-art or the Internet.  
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Lets Review What We Learned

• What have we learned and how you can apply it
• We can use technology to identify an objects
  basic shape, we can determine which formulas to
  use to calculate surface areas and volumes.
• Many products are packaged using these shapes.