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	<title>MathFour</title>
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	<description>Math is not a Four Letter Word</description>
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		<title>MathFour is Back!</title>
		<link>http://mathfour.com/general/mathfour-is-back/</link>
					<comments>http://mathfour.com/general/mathfour-is-back/#comments</comments>
		
		<dc:creator><![CDATA[Bon Crowder]]></dc:creator>
		<pubDate>Mon, 29 Dec 2025 23:05:22 +0000</pubDate>
				<category><![CDATA[General]]></category>
		<guid isPermaLink="false">https://mathfour.com/?p=14</guid>

					<description><![CDATA[For a while, a long while, I let this math blog just sit. I didn&#8217;t want to delete it. I spent too much time on it and I knew it was full of great stuff that was still being used. But I wasn&#8217;t in love with writing on it. In my lethargy, the hackers and [&#8230;]]]></description>
		
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			<slash:comments>3</slash:comments>
		
		
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		<title>Seeing Math at Church</title>
		<link>http://mathfour.com/patterns/seeing-math-church/</link>
					<comments>http://mathfour.com/patterns/seeing-math-church/#respond</comments>
		
		<dc:creator><![CDATA[Bon Crowder]]></dc:creator>
		<pubDate>Tue, 24 Mar 2015 23:04:44 +0000</pubDate>
				<category><![CDATA[Patterns]]></category>
		<category><![CDATA[Pythagorean]]></category>
		<category><![CDATA[square]]></category>
		<category><![CDATA[Wordless Wednesday]]></category>
		<guid isPermaLink="false">https://mathfour.com/?p=2511</guid>

					<description><![CDATA[Can you see math at your church? I bet you can!]]></description>
		
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			<slash:comments>0</slash:comments>
		
		
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		<title>Fahrenheit to Celsius &#8211; Graphically!</title>
		<link>http://mathfour.com/linear-algebra/fahrenheit-celsius-graphically/</link>
					<comments>http://mathfour.com/linear-algebra/fahrenheit-celsius-graphically/#comments</comments>
		
		<dc:creator><![CDATA[Bon Crowder]]></dc:creator>
		<pubDate>Tue, 14 May 2013 21:51:00 +0000</pubDate>
				<category><![CDATA[Linear Algebra]]></category>
		<category><![CDATA[algebra]]></category>
		<category><![CDATA[Celsius]]></category>
		<category><![CDATA[Fahrenheit]]></category>
		<category><![CDATA[geometry]]></category>
		<category><![CDATA[line]]></category>
		<category><![CDATA[linear]]></category>
		<category><![CDATA[linear programming]]></category>
		<category><![CDATA[temperature]]></category>
		<category><![CDATA[Wordless Wednesday]]></category>
		<guid isPermaLink="false">https://mathfour.com/?p=724</guid>

					<description><![CDATA[The conversion from Celsius to Fahrenheit and back again can be strange. One way to understand it is on a graph. And you can use this to teach some linear algebra too!]]></description>
		
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			<slash:comments>1</slash:comments>
		
		
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		<title>Area of a Circle vs. Area of a Triangle</title>
		<link>http://mathfour.com/geometry/area-of-a-circle-vs-area-of-a-triangle/</link>
					<comments>http://mathfour.com/geometry/area-of-a-circle-vs-area-of-a-triangle/#respond</comments>
		
		<dc:creator><![CDATA[Bon Crowder]]></dc:creator>
		<pubDate>Mon, 31 Dec 2012 06:18:09 +0000</pubDate>
				<category><![CDATA[Geometry]]></category>
		<category><![CDATA[area]]></category>
		<category><![CDATA[circle]]></category>
		<category><![CDATA[perimeter]]></category>
		<category><![CDATA[youtube]]></category>
		<guid isPermaLink="false">https://mathfour.com/?p=2997</guid>

					<description><![CDATA[This is a neat way to look at how a circle can relate to a triangle — it's less of a proof and more of an inspiration to think.]]></description>
		
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			<slash:comments>0</slash:comments>
		
		
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		<title>Does Santa Exist — Mathematically?</title>
		<link>http://mathfour.com/math-around-us/does-santa-exist-mathematically/</link>
					<comments>http://mathfour.com/math-around-us/does-santa-exist-mathematically/#respond</comments>
		
		<dc:creator><![CDATA[Bon Crowder]]></dc:creator>
		<pubDate>Sat, 22 Dec 2012 14:31:05 +0000</pubDate>
				<category><![CDATA[Math Around Us]]></category>
		<category><![CDATA[Christmas]]></category>
		<category><![CDATA[Christmas tree]]></category>
		<category><![CDATA[proof]]></category>
		<category><![CDATA[santa]]></category>
		<category><![CDATA[santa claus]]></category>
		<guid isPermaLink="false">https://mathfour.com/?p=2996</guid>

					<description><![CDATA[Can you prove Santa exists? If not Mathematically, then at least you can catch him in the act with a fun photo service!]]></description>
		
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			<slash:comments>0</slash:comments>
		
		
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		<item>
		<title>Personalized Number Puzzle Gift</title>
		<link>http://mathfour.com/games/number-puzzle-gift/</link>
					<comments>http://mathfour.com/games/number-puzzle-gift/#respond</comments>
		
		<dc:creator><![CDATA[Bon Crowder]]></dc:creator>
		<pubDate>Fri, 21 Dec 2012 08:23:02 +0000</pubDate>
				<category><![CDATA[Games]]></category>
		<category><![CDATA[Christmas]]></category>
		<category><![CDATA[games]]></category>
		<category><![CDATA[gifts]]></category>
		<category><![CDATA[presents]]></category>
		<category><![CDATA[puzzles]]></category>
		<guid isPermaLink="false">https://mathfour.com/?p=2995</guid>

					<description><![CDATA[Remember those email number puzzles that you get every now and then? Now's your chance to make your own — easily!]]></description>
		
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			<slash:comments>0</slash:comments>
		
		
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		<title>Area of a Right Triangle</title>
		<link>http://mathfour.com/geometry/area-of-a-right-triangle/</link>
					<comments>http://mathfour.com/geometry/area-of-a-right-triangle/#respond</comments>
		
		<dc:creator><![CDATA[Bon Crowder]]></dc:creator>
		<pubDate>Tue, 18 Dec 2012 00:19:50 +0000</pubDate>
				<category><![CDATA[Geometry]]></category>
		<category><![CDATA[area]]></category>
		<category><![CDATA[right triangle]]></category>
		<category><![CDATA[video]]></category>
		<category><![CDATA[youtube]]></category>
		<guid isPermaLink="false">https://mathfour.com/?p=2994</guid>

					<description><![CDATA[Calculating the area of a right triangle includes remembering the formula, and doing the arithmetic correctly. Here's a short video demonstrating it.]]></description>
		
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			<slash:comments>0</slash:comments>
		
		
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		<item>
		<title>Christmas on a Budget of $0</title>
		<link>http://mathfour.com/general/christmas-on-a-budget-of-0/</link>
					<comments>http://mathfour.com/general/christmas-on-a-budget-of-0/#respond</comments>
		
		<dc:creator><![CDATA[Bon Crowder]]></dc:creator>
		<pubDate>Mon, 17 Dec 2012 06:00:00 +0000</pubDate>
				<category><![CDATA[General]]></category>
		<category><![CDATA[budget]]></category>
		<category><![CDATA[Christmas]]></category>
		<category><![CDATA[gifts]]></category>
		<category><![CDATA[shopping]]></category>
		<guid isPermaLink="false">https://mathfour.com/?p=2993</guid>

					<description><![CDATA[This year, money’s tight. But we’ve had tight Christmases before. Here's how I'm doing it on a $0 budget!]]></description>
		
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			<slash:comments>0</slash:comments>
		
		
			</item>
		<item>
		<title>Great Gift Wrap Up — Math Gifts</title>
		<link>http://mathfour.com/products/great-gift-wrap-up-math-gifts/</link>
					<comments>http://mathfour.com/products/great-gift-wrap-up-math-gifts/#respond</comments>
		
		<dc:creator><![CDATA[Bon Crowder]]></dc:creator>
		<pubDate>Fri, 14 Dec 2012 00:22:10 +0000</pubDate>
				<category><![CDATA[Products]]></category>
		<category><![CDATA[Christmas]]></category>
		<category><![CDATA[gifts]]></category>
		<category><![CDATA[holiday]]></category>
		<category><![CDATA[presents]]></category>
		<guid isPermaLink="false">https://mathfour.com/?p=2992</guid>

					<description><![CDATA[Looking for some great gifts? Here's a big collection of educational math gifts that are fun!]]></description>
		
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			<slash:comments>0</slash:comments>
		
		
			</item>
		<item>
		<title>Salvation Army Donation Math</title>
		<link>http://mathfour.com/math-around-us/salvation-army-donation-math/</link>
					<comments>http://mathfour.com/math-around-us/salvation-army-donation-math/#respond</comments>
		
		<dc:creator><![CDATA[Bon Crowder]]></dc:creator>
		<pubDate>Wed, 12 Dec 2012 01:24:00 +0000</pubDate>
				<category><![CDATA[Math Around Us]]></category>
		<category><![CDATA[Angel Tree]]></category>
		<category><![CDATA[donate]]></category>
		<category><![CDATA[donation]]></category>
		<category><![CDATA[math modeling]]></category>
		<category><![CDATA[Math Problem Quickie]]></category>
		<category><![CDATA[Salvation Army]]></category>
		<guid isPermaLink="false">https://mathfour.com/?p=2991</guid>

					<description><![CDATA[Do you donate to charities? Here's how you can integrate a math lesson into it!]]></description>
		
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			<slash:comments>0</slash:comments>
		
		
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