12.6 Part 2- Volume of a Sphere

Today, we learned about how to find the volume of a sphere.  You should know how to find the volume of any composite solid now using your knowledge of volume of all solids.

Tonight's homework is: P. 842-843 #13,17,20, and 21
Also, we have our volume quiz tomorrow in class.  Please study!

http://www.brightstorm.com/math/geometry/volume/volume-of-spheres
Remember that you can use this website to review all past concepts if you need extra help!

12.6- Surface Area of Spheres

Today we learned about how to find the surface area of a sphere.  Think about it taking apart a baseball, and asking yourself how much leather would you need to cover the entire surface.

Tonight's homework is P. 842-843 #3,6,7, and 9

Check out this video for extra help:
http://www.brightstorm.com/math/geometry/volume/surface-area-of-spheres

12.5- Volume of Pyramids and Cones

Today we learned how to find the area of pyramids and cones.  You should be able to apply these formulas to calculate various parts of solids.

Tonight's homework is P. 832-833 #3, 6, 11, 13, 14, 17, 18, 21, and 24

Please see the following videos for extra help:
http://www.brightstorm.com/math/geometry/volume/volume-of-pyramids
http://www.brightstorm.com/math/geometry/volume/volume-of-cones

Also, if you are interested in proving why a pyramid is one-third the volume of a prism, check this out:
http://mathschallenge.net/library/geometry/volume_pyramid

12.4- Volume of Prisms and Cylinders

Today we started our discussion on volume of three-dimensional solids.  We began by looking at prisms and cylinders which have the same formula for finding their volume- calculating the area of the Base multiplied by the height of the solid.

Tonight's homework is P. 822-824 #3,7,11,15,19, and 21

Please see the following videos for extra help:
http://www.brightstorm.com/math/geometry/volume/volume-of-prisms
http://www.brightstorm.com/math/geometry/volume/volume-of-cylinders

Surface Area Review and Logic Puzzles

Today we reviewed what we have learned so far about Surface Area.  Please be sure that you have a good understanding of Surface Area so that we can move on to Volume tomorrow.

For homework, you received two logic puzzles in class.  You are to solve them for homework tonight.  If you need help, here are some websites that give some suggestions on how to solve them:

http://www.ehow.com/how_4442217_solve-logic-problems.html
http://www.thepuzzleclub.com/logicpuzzlessolve.php

HAVE FUN!!  =)

12.3 Part 2- Surface Area of Cones

Today we learned how to find the lateral area and total surface area of a cone.

Tonight's homework is P. 814-815 #11,15,17, and 22

Please see this video on finding surface area of a cone:
http://www.brightstorm.com/math/geometry/area/surface-area-of-cones
Also, here is a video on the surface are of joined solids if you are having trouble with them:
http://www.brightstorm.com/math/geometry/area/surface-area-of-joined-solids

12.3 Part 1- Surface Area of Pyramids

Today we discussed how to find the surface are of a pyramid.  Please make sure you review all vocabulary associated with a pyramid and please see me if you are having trouble with any of the surface area concepts as we are doing them.  Don't wait until it's too late!

Today's homework is P. 814-815 3,5,7,and 23

Here is a video that may help you if you are having difficulty understanding the material:
http://www.brightstorm.com/math/geometry/area/surface-area-of-pyramids

12.2- Surface Area of Prisms and Cylinders

Today we began our study on 3-dimensional solids.  We looked at finding the surface area of prisms and cylinders.

Tonight your homework is P. 806-807 #3,7,9,13, and 17

For more help with finding surface area of these solids, please see:
http://www.classzone.com/cz/books/geometry_2007_na/resources/applications/animations/geom07_ch12_pg805.html
http://www.brightstorm.com/math/geometry/area/surface-area-of-prisms
http://www.brightstorm.com/math/geometry/area/surface-area-of-cylinders

Ch. 1-11 Test and Corrections

On Friday you received your Chapter 1-11 Test.  Test corrections are due on Monday, unless you need extra help- in which case you should come see me at lunch on Monday, and you can work until Tuesday to complete corrections.  PLEASE SEE ME if you are having trouble with your corrections!

Extra Credit Assignment

Hi everyone, please remember that your extra credit drawing is due tomorrow.  The more creative and detailed, the more points you will receive toward your project average.  All missing assignments are due tomorrow as well.