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	Comments on: Same &#038; Different As It Ever Was	</title>
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	<description>less helpful</description>
	<lastBuildDate>Thu, 16 Oct 2014 02:56:14 +0000</lastBuildDate>
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		<title>
		By: Dan Meyer		</title>
		<link>/2014/same-different-as-it-ever-was/#comment-2247839</link>

		<dc:creator><![CDATA[Dan Meyer]]></dc:creator>
		<pubDate>Thu, 16 Oct 2014 02:56:14 +0000</pubDate>
		<guid isPermaLink="false">/?p=21461#comment-2247839</guid>

					<description><![CDATA[&lt;strong&gt;@Michael&lt;/strong&gt;, let me try one more out:

&lt;blockquote&gt;Developing the question means attending to processes that interest normal people before attending to the processes that interest mathematicians.&lt;/blockquote&gt;

Too glib perhaps.]]></description>
			<content:encoded><![CDATA[<p><strong>@Michael</strong>, let me try one more out:</p>
<blockquote><p>Developing the question means attending to processes that interest normal people before attending to the processes that interest mathematicians.</p></blockquote>
<p>Too glib perhaps.</p>
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		<title>
		By: Harry O'Malley		</title>
		<link>/2014/same-different-as-it-ever-was/#comment-2243048</link>

		<dc:creator><![CDATA[Harry O'Malley]]></dc:creator>
		<pubDate>Sat, 11 Oct 2014 18:47:01 +0000</pubDate>
		<guid isPermaLink="false">/?p=21461#comment-2243048</guid>

					<description><![CDATA[Very interesting book.  Great premise and some great problems.  A lot of figures in it though, just in word form.  I had hoped it was more pure.  Anyway, here&#039;s some more that help flesh out the possible a bit:

Describe the configuration of scales on a snake using 3D transformations.

Given a closed two-dimensional shape, invent a statistic that describes how “round” the shape is.  When your statistic is applied to a circle, it should yield the highest possible score.

A tree’s primary branches are those branches that sprout directly from the trunk.  Secondary branches are those that sprout from a primary branch.  Tertiary branches sprout from secondary ones, etc.  What is the ratio of a tree’s trunk circumference to the circumference of it’s thickest primary branch?  What about the ratio of the circumference of a tree’s thickest primary branch to the thickest secondary branch?  Thickest secondary to tertiary, etc?

How many kisses will happen today?

How close can you get the tip of your right index finger to the tip of your right elbow? What is the farthest distance you can make between that finger and elbow?  Answer the same two questions for your right index finger and left elbow.

Imagine two line segments that are connected at one end.  What could this be a model of?

How much do the raw materials used to make a single wooden pencil cost?

A lattice point is a point in the coordinate plane with integer coordinates.  Is it possible for a line to go through exactly one lattice point?

Think of as many words as you can that are related to geometry and contain the letters c and t.

Make a serious effort to find the best word or phrase to complete the following analogy and explain your choice.  Math is to beauty as ___________ is to emotions.]]></description>
			<content:encoded><![CDATA[<p>Very interesting book.  Great premise and some great problems.  A lot of figures in it though, just in word form.  I had hoped it was more pure.  Anyway, here&#8217;s some more that help flesh out the possible a bit:</p>
<p>Describe the configuration of scales on a snake using 3D transformations.</p>
<p>Given a closed two-dimensional shape, invent a statistic that describes how “round” the shape is.  When your statistic is applied to a circle, it should yield the highest possible score.</p>
<p>A tree’s primary branches are those branches that sprout directly from the trunk.  Secondary branches are those that sprout from a primary branch.  Tertiary branches sprout from secondary ones, etc.  What is the ratio of a tree’s trunk circumference to the circumference of it’s thickest primary branch?  What about the ratio of the circumference of a tree’s thickest primary branch to the thickest secondary branch?  Thickest secondary to tertiary, etc?</p>
<p>How many kisses will happen today?</p>
<p>How close can you get the tip of your right index finger to the tip of your right elbow? What is the farthest distance you can make between that finger and elbow?  Answer the same two questions for your right index finger and left elbow.</p>
<p>Imagine two line segments that are connected at one end.  What could this be a model of?</p>
<p>How much do the raw materials used to make a single wooden pencil cost?</p>
<p>A lattice point is a point in the coordinate plane with integer coordinates.  Is it possible for a line to go through exactly one lattice point?</p>
<p>Think of as many words as you can that are related to geometry and contain the letters c and t.</p>
<p>Make a serious effort to find the best word or phrase to complete the following analogy and explain your choice.  Math is to beauty as ___________ is to emotions.</p>
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		<title>
		By: Isaac D.		</title>
		<link>/2014/same-different-as-it-ever-was/#comment-2241932</link>

		<dc:creator><![CDATA[Isaac D.]]></dc:creator>
		<pubDate>Fri, 10 Oct 2014 18:24:38 +0000</pubDate>
		<guid isPermaLink="false">/?p=21461#comment-2241932</guid>

					<description><![CDATA[I just went back and found the tablet. It&#039;s in the British Museum and it&#039;s much older than I indicated (the museum lists it as somewhere between 1900 BCE and 1600 BCE).

http://cdli.ucla.edu/search/search_results.php?SearchMode=Text&#038;ObjectID=P254438

So yes, students have been doing this sort of &quot;fake world&quot; word problem for upwards of 3,600 years!

(the translation above comes from http://oracc.museum.upenn.edu/).]]></description>
			<content:encoded><![CDATA[<p>I just went back and found the tablet. It&#8217;s in the British Museum and it&#8217;s much older than I indicated (the museum lists it as somewhere between 1900 BCE and 1600 BCE).</p>
<p><a href="http://cdli.ucla.edu/search/search_results.php?SearchMode=Text&#038;ObjectID=P254438" rel="nofollow ugc">http://cdli.ucla.edu/search/search_results.php?SearchMode=Text&#038;ObjectID=P254438</a></p>
<p>So yes, students have been doing this sort of &#8220;fake world&#8221; word problem for upwards of 3,600 years!</p>
<p>(the translation above comes from <a href="http://oracc.museum.upenn.edu/" rel="nofollow ugc">http://oracc.museum.upenn.edu/</a>).</p>
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		<title>
		By: Isaac D.		</title>
		<link>/2014/same-different-as-it-ever-was/#comment-2241926</link>

		<dc:creator><![CDATA[Isaac D.]]></dc:creator>
		<pubDate>Fri, 10 Oct 2014 18:16:41 +0000</pubDate>
		<guid isPermaLink="false">/?p=21461#comment-2241926</guid>

					<description><![CDATA[It goes back further than Bannon has taken it.

In my Algebra 1 and Geometry classes I like to pull out and show some of the word problems (with worked-out solutions) found on clay tablets in Old Babylonian excavations. Apart from the base-60 number system, these are pretty much identical to what we might see in a textbook today.

To give one favorite example (I think this one comes from a Sippar in the 9th century BCE but I&#039;d have to check):

&quot;A textile. The length is 48 [rods]. In 1 day she wove 0:20 [rods]. In how many days will she cut [it] off [the loom]?
You solve the reciprocal of 0:20. You will see 3. Multiply 48 by 3. You will see 2:24. She will cut [it] off after 4 months, 24 days.&quot;

(I especially like to show a picture of this tablet because the scribe ran out of room at the bottom of the tablet and the second half of this particular solution is marked along the bottom edge. Students can usually sympathize with this if they have ever run out of room on a page while solving an equation).]]></description>
			<content:encoded><![CDATA[<p>It goes back further than Bannon has taken it.</p>
<p>In my Algebra 1 and Geometry classes I like to pull out and show some of the word problems (with worked-out solutions) found on clay tablets in Old Babylonian excavations. Apart from the base-60 number system, these are pretty much identical to what we might see in a textbook today.</p>
<p>To give one favorite example (I think this one comes from a Sippar in the 9th century BCE but I&#8217;d have to check):</p>
<p>&#8220;A textile. The length is 48 [rods]. In 1 day she wove 0:20 [rods]. In how many days will she cut [it] off [the loom]?<br />
You solve the reciprocal of 0:20. You will see 3. Multiply 48 by 3. You will see 2:24. She will cut [it] off after 4 months, 24 days.&#8221;</p>
<p>(I especially like to show a picture of this tablet because the scribe ran out of room at the bottom of the tablet and the second half of this particular solution is marked along the bottom edge. Students can usually sympathize with this if they have ever run out of room on a page while solving an equation).</p>
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		<title>
		By: Marcie C.		</title>
		<link>/2014/same-different-as-it-ever-was/#comment-2239549</link>

		<dc:creator><![CDATA[Marcie C.]]></dc:creator>
		<pubDate>Wed, 08 Oct 2014 23:05:32 +0000</pubDate>
		<guid isPermaLink="false">/?p=21461#comment-2239549</guid>

					<description><![CDATA[I find this to be quite true on so many levels.  If there are no numbers in the problems my students don&#039;t think they are even doing math.  Our new CCSS curriculum has a lot of scenarios like this and I love that it is challenging not only their math abilities but also their critical thinking skills.  If they understand the reasoning behind problems, then most times the numbers (and/or variables) become a moot point.]]></description>
			<content:encoded><![CDATA[<p>I find this to be quite true on so many levels.  If there are no numbers in the problems my students don&#8217;t think they are even doing math.  Our new CCSS curriculum has a lot of scenarios like this and I love that it is challenging not only their math abilities but also their critical thinking skills.  If they understand the reasoning behind problems, then most times the numbers (and/or variables) become a moot point.</p>
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		<title>
		By: Mathin&#8217; like it&#8217;s 1909 &#124; MathLab		</title>
		<link>/2014/same-different-as-it-ever-was/#comment-2239106</link>

		<dc:creator><![CDATA[Mathin&#8217; like it&#8217;s 1909 &#124; MathLab]]></dc:creator>
		<pubDate>Wed, 08 Oct 2014 16:25:27 +0000</pubDate>
		<guid isPermaLink="false">/?p=21461#comment-2239106</guid>

					<description><![CDATA[[&#8230;] and engaged in the questionÂ  being posed to them.Â  I ran across a great book, even before Dan Meyer mentioned it in his post.Â  It is an old book called Problems Without Figures, written by S. Y. [&#8230;]]]></description>
			<content:encoded><![CDATA[<p>[&#8230;] and engaged in the questionÂ  being posed to them.Â  I ran across a great book, even before Dan Meyer mentioned it in his post.Â  It is an old book called Problems Without Figures, written by S. Y. [&#8230;]</p>
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		<title>
		By: Matt		</title>
		<link>/2014/same-different-as-it-ever-was/#comment-2238281</link>

		<dc:creator><![CDATA[Matt]]></dc:creator>
		<pubDate>Wed, 08 Oct 2014 01:40:47 +0000</pubDate>
		<guid isPermaLink="false">/?p=21461#comment-2238281</guid>

					<description><![CDATA[Oops.  Just checked out the &quot;About&quot; page.  Found my answer.  6 years.  More later, gotta grade papers!]]></description>
			<content:encoded><![CDATA[<p>Oops.  Just checked out the &#8220;About&#8221; page.  Found my answer.  6 years.  More later, gotta grade papers!</p>
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		<title>
		By: Matt		</title>
		<link>/2014/same-different-as-it-ever-was/#comment-2238261</link>

		<dc:creator><![CDATA[Matt]]></dc:creator>
		<pubDate>Wed, 08 Oct 2014 01:19:15 +0000</pubDate>
		<guid isPermaLink="false">/?p=21461#comment-2238261</guid>

					<description><![CDATA[Just curious (not highly ciritical--you never know how a printed message might sound...).

Mr. Meyer, I read in a yahoo article that you taught math.  For how long did you teach before moving on to advanced studies?]]></description>
			<content:encoded><![CDATA[<p>Just curious (not highly ciritical&#8211;you never know how a printed message might sound&#8230;).</p>
<p>Mr. Meyer, I read in a yahoo article that you taught math.  For how long did you teach before moving on to advanced studies?</p>
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		<title>
		By: Alex		</title>
		<link>/2014/same-different-as-it-ever-was/#comment-2238122</link>

		<dc:creator><![CDATA[Alex]]></dc:creator>
		<pubDate>Tue, 07 Oct 2014 22:15:14 +0000</pubDate>
		<guid isPermaLink="false">/?p=21461#comment-2238122</guid>

					<description><![CDATA[&quot;152. If you know how much a man paid for an automobile, how much it cost to run it two months, what the current rate of interest is, the amount of the doctor&#039;s bill for setting the man&#039;s leg and for a month&#039;s attendance, and how much the machine then sold for, how can you compute the cost of the fun the man had?&quot;]]></description>
			<content:encoded><![CDATA[<p>&#8220;152. If you know how much a man paid for an automobile, how much it cost to run it two months, what the current rate of interest is, the amount of the doctor&#8217;s bill for setting the man&#8217;s leg and for a month&#8217;s attendance, and how much the machine then sold for, how can you compute the cost of the fun the man had?&#8221;</p>
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		<title>
		By: Dan Meyer		</title>
		<link>/2014/same-different-as-it-ever-was/#comment-2237669</link>

		<dc:creator><![CDATA[Dan Meyer]]></dc:creator>
		<pubDate>Tue, 07 Oct 2014 14:33:10 +0000</pubDate>
		<guid isPermaLink="false">/?p=21461#comment-2237669</guid>

					<description><![CDATA[They&#039;re more alike than they&#039;re different. But they aren&#039;t really equivalent. Some pertain more to modeling (&quot;real world math&quot;). Others are more general. Call them cousins, maybe.]]></description>
			<content:encoded><![CDATA[<p>They&#8217;re more alike than they&#8217;re different. But they aren&#8217;t really equivalent. Some pertain more to modeling (&#8220;real world math&#8221;). Others are more general. Call them cousins, maybe.</p>
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