Tuesday, April 24, 2007
Geometry (Class 70)
Announcements
CST Part 1, Monday May 14
CST Part 2, Wednesday May 16
Overview
In today’s class we extend our study of solids to include finding the volumes of prisms, pyramids, cones, and spheres. We also learn how to find the surface area of a sphere.
Textbook Sections
§12.4 (Txt. p.743) Volume of Prisms and Cylinders
§12.5 (Txt. p.752) Volume of Pyramids and Cones
§12.6 (Txt. p.759) Surface Area and Volume of Spheres
Key Attitudes
Mathematics is about looking for patterns.
Key Ideas
The volume of a pyramid 1/3 of its surrounding prism.
The volume of a cone is 1/3 the volume of its surrounding cylinder.
Key Skills
Finding the volume of a pyramid, prism, cylinder, cone, or sphere by applying the appropriate formula.
Finding the surface area of a sphere by applying the formula S = 4πr^2
Key Skills
Finding the volume of a pyramid, prism, cylinder, cone, or sphere by applying the appropriate formula.
Finding the surface area of a sphere by applying the formula S = 4πr^2
Turn In
Worksheet Practice 12.2 A and 12.3 A
Handouts
No Handouts Posted
Assignment
Practice Worksheets 12.4A, 12.5A, 12.6A
Disclaimer- The assignment as stated in class is the official assignment. Every effort is made to keep this posting accurate, but you should refer to what was stated in class as the final word.
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