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Addition of Fractions

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Counting Carpenters
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Credit: Aaron Pineda/U.S. Navy
Source: http://commons.wikimedia.org/wiki/File:US_Navy_030120-N-3005P-003_Builder_3rd_Class_Jeff_Tjader_from_Erie,_Pa.,_attached_to_Amphibious_Construction_Battalion_One_(ACB-1)_saws_lumber_used_for_tent_decking.jpg
License: CC BY-NC 3.0

Lumber and other building materials come in standard sizes. When a builder is working on a new house, the use of standard sizes makes the job easier and quicker. Things become more complicated in older houses. Floors slope with age. Doors no longer hang straight. Worst of all, nothing is standard.

Measure Twice, Cut Once

To successfully renovate an old house, a carpenter must be comfortable with fractions. In order to figure out how to make his materials fit the job, he has to measure carefully and be able to add fractions quickly. Good carpenters will know how to buy the right amount of materials on the first try. They can build a perfect wall, even when distances vary. In an old house, the height of the ceiling might be 9 feet in one corner and 9 feet and 2 \frac{1}{4} inches in another part of the room. Carpenters who work on old houses must have good visual and spatial skills. To them, a difficult job presents itself as a puzzle.

Credit: Susie Cagle
Source: http://www.flickr.com/photos/secagle/8368938766/
License: CC BY-NC 3.0

If you’re interested in carpentry, the best way to improve your skills is through hands-on experience. Start with small projects. If possible, find a carpenter in your local area who’s willing to let you watch him work and teach you what he’s doing. After high school, you can work as a carpenter’s apprentice and learn how to build and remodel homes.

See for yourself: http://www.youtube.com/watch?v=jM6TS6OUmkQ

Explore More

In the first two videos below, watch as two old houses undergo remodeling. Check out the last video for a closer look at how basement walls are framed out.

http://www.thisoldhouse.com/toh/video/0,,20594671,00.html

http://www.youtube.com/watch?v=f1LKxx6Htbg

http://www.thisoldhouse.com/toh/video/0,,20332381,00.html

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