<story><title>The Rule of 72 (2007)</title><url>http://betterexplained.com/articles/the-rule-of-72/</url></story><parent_chain><item><author>kbart</author><text>&lt;i&gt;&amp;quot;This stuff should be taught in high schools.&amp;quot;&lt;/i&gt;&lt;p&gt;Strange, so it&amp;#x27;s not taught in USA? I always assumed compound interest to be basics and taught universally. I did learn about them probably in 7th or 8th grade.</text></item><item><author>nailer</author><text>People shouldn&amp;#x27;t  be able to get credit cards until they understand compound interest. This stuff should be taught in high schools.&lt;p&gt;There&amp;#x27;s a group doing that: &lt;a href=&quot;http:&amp;#x2F;&amp;#x2F;schooold.com&amp;#x2F;&quot; rel=&quot;nofollow&quot;&gt;http:&amp;#x2F;&amp;#x2F;schooold.com&amp;#x2F;&lt;/a&gt;. They have a financial curriculum that&amp;#x27;s now part of the Kitty Andersen Youth Science Center.</text></item></parent_chain><comment><author>grahamburger</author><text>I think every time I&amp;#x27;ve heard someone say &amp;#x27;this should be taught in public school&amp;#x27; it&amp;#x27;s in reference to something that already is taught in public school. The problem is we don&amp;#x27;t internalize things that we haven&amp;#x27;t had to experience yet very well, and we forget.</text></comment>
<story><title>The Rule of 72 (2007)</title><url>http://betterexplained.com/articles/the-rule-of-72/</url></story><parent_chain><item><author>kbart</author><text>&lt;i&gt;&amp;quot;This stuff should be taught in high schools.&amp;quot;&lt;/i&gt;&lt;p&gt;Strange, so it&amp;#x27;s not taught in USA? I always assumed compound interest to be basics and taught universally. I did learn about them probably in 7th or 8th grade.</text></item><item><author>nailer</author><text>People shouldn&amp;#x27;t  be able to get credit cards until they understand compound interest. This stuff should be taught in high schools.&lt;p&gt;There&amp;#x27;s a group doing that: &lt;a href=&quot;http:&amp;#x2F;&amp;#x2F;schooold.com&amp;#x2F;&quot; rel=&quot;nofollow&quot;&gt;http:&amp;#x2F;&amp;#x2F;schooold.com&amp;#x2F;&lt;/a&gt;. They have a financial curriculum that&amp;#x27;s now part of the Kitty Andersen Youth Science Center.</text></item></parent_chain><comment><author>archgoon</author><text>This is taught in american middle schools and high schools. Multiple times; it&amp;#x27;s the defacto example of how exponents work.&lt;p&gt;It is not explicitly called out in the Common Core standard, but several of the examples in the common core are interest rate problems.&lt;p&gt;Here&amp;#x27;s an example from the California Standard, search for &amp;#x27;interest&amp;#x27;.&lt;p&gt;&lt;a href=&quot;http:&amp;#x2F;&amp;#x2F;www.cde.ca.gov&amp;#x2F;be&amp;#x2F;st&amp;#x2F;ss&amp;#x2F;documents&amp;#x2F;ccssmathstandardaug2013.pdf&quot; rel=&quot;nofollow&quot;&gt;http:&amp;#x2F;&amp;#x2F;www.cde.ca.gov&amp;#x2F;be&amp;#x2F;st&amp;#x2F;ss&amp;#x2F;documents&amp;#x2F;ccssmathstandardaug...&lt;/a&gt;</text></comment>