http://www.mathhiker.com Learning Math Has Never Been So Great! Tue, 05 Jan 2010 19:04:55 +0000 http://backend.userland.com/rss092 en Dodeca and Icosa discuss why the volume of a sphere has the formula that it does. Please click on the comic strip to enlarge if necessary. [caption id="attachment_1412" align="alignnone" width="500" caption=" Please click on the comic strip to enlarge if necessary."][/caption] http://www.mathhiker.com/archives/1841 Octa challenges Hexa to fold a large piece of paper on half ten times. See what the result is. Click on the comic strip to enlarge if necessary. [caption id="attachment_1412" align="alignnone" width="500" caption=" Please click on the comic strip to enlarge if necessary."][/caption] http://www.mathhiker.com/archives/1833 How can equations be rearranged and solved for different variables. Please click on the file name to see the pdf file. How To Rearrange Equations http://www.mathhiker.com/archives/1826 Dodeca and Icosa discuss how the formulas for the volumes of pyramids can be obtained from the formulas for the volumes of prisms. Please click on the comic strip to enlarge if necessary. [caption id="attachment_1412" align="alignnone" width="500" caption=" Please click on the comic strip to enlarge if necessary."][/caption] http://www.mathhiker.com/archives/1818 Octa and Hexa continue with their string art boat by changing the scales on one of the axes. Please click on the comic strip to enlarge if possible. [caption id="attachment_1412" align="alignnone" width="500" caption=" Please click on the comic strip to enlarge if necessary."][/caption] http://www.mathhiker.com/archives/1810 Dodeca and Icosa have a look at how volumes of shapes can be computed from the areas of their bases. Please click on the comic strip to enlarge if necessary [caption id="attachment_1412" align="alignnone" width="500" caption=" Please click on the comic strip to enlarge if necessary."][/caption] http://www.mathhiker.com/archives/1803 Octa shows Hexa how to do some string art. Please click on the comic strip to enlarge if necessary. [caption id="attachment_1412" align="alignnone" width="500" caption=" Please click on the comic strip to enlarge if necessary."][/caption] http://www.mathhiker.com/archives/1796 Using the factoring formula for the difference of cubes leads to a mental mathematics trick to cube any number. Please click on the file name to see the pdf file. Using Factoring to Cube Any Number http://www.mathhiker.com/archives/1788 2000 years after Euclid proved that the square root of 2 was irrational, Dedekind puts the rigor into how the irrationals exist on the real number line. Please click on the file name to see the pdf file. Dedekind Cleans Up Mathematics http://www.mathhiker.com/archives/1781 How dividing radicals and rationalizing the denominator helps in a geometry proof. Please click on the file name to see the pdf file. Using Dividing Radicals In a Proof http://www.mathhiker.com/archives/1775