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		<title>MathFour is Back!</title>
		<link>https://mathfour.com/general/mathfour-is-back/</link>
					<comments>https://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>Texas Instruments Little Professor</title>
		<link>https://mathfour.com/products/texas-instruments-little-professor/</link>
					<comments>https://mathfour.com/products/texas-instruments-little-professor/#respond</comments>
		
		<dc:creator><![CDATA[Bon Crowder]]></dc:creator>
		<pubDate>Wed, 15 Jul 2015 07:05:00 +0000</pubDate>
				<category><![CDATA[Products]]></category>
		<category><![CDATA[calculator]]></category>
		<category><![CDATA[games]]></category>
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					<description><![CDATA[Do you remember the TI Little Professor? Take a look at a working one!]]></description>
		
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			<slash:comments>0</slash:comments>
		
		
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		<title>Seeing Math at Church</title>
		<link>https://mathfour.com/patterns/seeing-math-church/</link>
					<comments>https://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>https://mathfour.com/linear-algebra/fahrenheit-celsius-graphically/</link>
					<comments>https://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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		<item>
		<title>10 Ways Getting Married is Like Doing Math</title>
		<link>https://mathfour.com/math-around-us/10-ways-getting-married-is-like-doing-math/</link>
					<comments>https://mathfour.com/math-around-us/10-ways-getting-married-is-like-doing-math/#respond</comments>
		
		<dc:creator><![CDATA[Bon Crowder]]></dc:creator>
		<pubDate>Thu, 14 Mar 2013 20:41:53 +0000</pubDate>
				<category><![CDATA[Math Around Us]]></category>
		<category><![CDATA[getting married]]></category>
		<category><![CDATA[marriage]]></category>
		<guid isPermaLink="false">https://mathfour.com/?p=2510</guid>

					<description><![CDATA[Getting married and doing math are both challenging and fun. Among many other things!]]></description>
		
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			<slash:comments>0</slash:comments>
		
		
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		<title>How to Find the Cheapest Price per Unit</title>
		<link>https://mathfour.com/math-around-us/how-to-find-the-cheapest-price-per-unit/</link>
					<comments>https://mathfour.com/math-around-us/how-to-find-the-cheapest-price-per-unit/#respond</comments>
		
		<dc:creator><![CDATA[Bon Crowder]]></dc:creator>
		<pubDate>Tue, 29 Jan 2013 20:41:53 +0000</pubDate>
				<category><![CDATA[Math Around Us]]></category>
		<category><![CDATA[cost]]></category>
		<category><![CDATA[math around us]]></category>
		<category><![CDATA[money]]></category>
		<category><![CDATA[playing cards]]></category>
		<category><![CDATA[price per unit]]></category>
		<category><![CDATA[prices]]></category>
		<guid isPermaLink="false">https://mathfour.com/?p=3021</guid>

					<description><![CDATA[Which deck of cards is the cheapest? Not what you think!]]></description>
		
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			<slash:comments>0</slash:comments>
		
		
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		<item>
		<title>How to Find 20% of a Rectangle — The Facebook Page Cover Photo</title>
		<link>https://mathfour.com/math-around-us/how-to-find-20-of-a-rectangle-the-facebook-page-cover-photo/</link>
					<comments>https://mathfour.com/math-around-us/how-to-find-20-of-a-rectangle-the-facebook-page-cover-photo/#respond</comments>
		
		<dc:creator><![CDATA[Bon Crowder]]></dc:creator>
		<pubDate>Thu, 24 Jan 2013 20:41:53 +0000</pubDate>
				<category><![CDATA[Math Around Us]]></category>
		<category><![CDATA[Facebook]]></category>
		<category><![CDATA[infographic]]></category>
		<category><![CDATA[multiplication]]></category>
		<category><![CDATA[percent]]></category>
		<category><![CDATA[prime factorization]]></category>
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					<description><![CDATA[Percents are an important math concept. And finding 20% of a rectangle isn't a trivial endeavor if you're on Facebook!]]></description>
		
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		<item>
		<title>Math Student Family Tree</title>
		<link>https://mathfour.com/general/math-student-family-tree/</link>
					<comments>https://mathfour.com/general/math-student-family-tree/#respond</comments>
		
		<dc:creator><![CDATA[Bon Crowder]]></dc:creator>
		<pubDate>Sun, 20 Jan 2013 20:41:53 +0000</pubDate>
				<category><![CDATA[General]]></category>
		<category><![CDATA[family]]></category>
		<category><![CDATA[hate math]]></category>
		<category><![CDATA[I Love Math]]></category>
		<category><![CDATA[influence]]></category>
		<category><![CDATA[parents]]></category>
		<category><![CDATA[student]]></category>
		<guid isPermaLink="false">https://mathfour.com/?p=3019</guid>

					<description><![CDATA[Have you seen what the family tree of an engaged math student looks like? How about a fearful math student? Here's both!]]></description>
		
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			<slash:comments>0</slash:comments>
		
		
			</item>
		<item>
		<title>Two Year Anniversary!</title>
		<link>https://mathfour.com/general/two-year-anniversary/</link>
					<comments>https://mathfour.com/general/two-year-anniversary/#respond</comments>
		
		<dc:creator><![CDATA[Bon Crowder]]></dc:creator>
		<pubDate>Mon, 14 Jan 2013 20:41:53 +0000</pubDate>
				<category><![CDATA[General]]></category>
		<category><![CDATA[anniversary]]></category>
		<category><![CDATA[That's Math]]></category>
		<guid isPermaLink="false">https://mathfour.com/?p=3018</guid>

					<description><![CDATA[It's been two years since I started Math Is Not a Four Letter Word. I've done lots of things, but there's lots more to do. Look forward to these...]]></description>
		
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			<slash:comments>0</slash:comments>
		
		
			</item>
		<item>
		<title>Eric Bolling vs. Scholastic — Both Wrong about the Distributive Property!</title>
		<link>https://mathfour.com/commentary/eric-bolling-vs-scholastic-both-wrong-about-the-distributive-property/</link>
					<comments>https://mathfour.com/commentary/eric-bolling-vs-scholastic-both-wrong-about-the-distributive-property/#respond</comments>
		
		<dc:creator><![CDATA[Bon Crowder]]></dc:creator>
		<pubDate>Fri, 11 Jan 2013 20:41:53 +0000</pubDate>
				<category><![CDATA[Commentary]]></category>
		<category><![CDATA[commentary]]></category>
		<category><![CDATA[distributive property]]></category>
		<category><![CDATA[political]]></category>
		<category><![CDATA[youtube]]></category>
		<guid isPermaLink="false">https://mathfour.com/?p=3017</guid>

					<description><![CDATA[Scholastic Publishing has been accused of pushing the liberal agenda by Eric Bolling on Fox News. But  Eric Boling is using the wrong argument!]]></description>
		
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