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      <pubDate>Fri, 07 Sep 2012 23:20:42 GMT</pubDate>
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         <title>Calculator Tips 1 Basics - VARS, roots, table setup, graph, insert, 2nd enter</title>
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         <pubDate>Fri, 07 Sep 2012 23:20:42 GMT</pubDate>
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         <pubDate>Thu, 31 Mar 2011 20:57:14 GMT</pubDate>
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         <title>AP Final Pointers (for iPhone)</title>
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         <pubDate>Thu, 31 Mar 2011 11:45:09 GMT</pubDate>
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         <title>7.4 - Exponential Growth and Decay</title>
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         <pubDate>Sat, 12 Feb 2011 22:28:04 GMT</pubDate>
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         <title>7.3 - Separable Equations</title>
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         <pubDate>Sat, 12 Feb 2011 22:25:52 GMT</pubDate>
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         <title>7.2 - Direction Fields and Euler's Method</title>
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         <pubDate>Sat, 12 Feb 2011 22:23:25 GMT</pubDate>
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         <dc:date>2013-02-15T00:00:00-00:00</dc:date>
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         <title>7.1 - Modeling with Differential Equations</title>
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         <pubDate>Sun, 06 Feb 2011 16:38:29 GMT</pubDate>
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         <dc:date>2013-02-13T00:00:00-00:00</dc:date>
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         <title>6.4 - Average Value of a Function</title>
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         <pubDate>Sun, 23 Jan 2011 22:42:11 GMT</pubDate>
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         <title>6.2 - Volumes</title>
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         <pubDate>Wed, 19 Jan 2011 01:30:24 GMT</pubDate>
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         <dc:date>2013-01-28T00:00:00-00:00</dc:date>
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         <title>6.1 - More About Areas</title>
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         <pubDate>Mon, 17 Jan 2011 21:49:39 GMT</pubDate>
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         <dc:date>2013-01-25T00:00:00-00:00</dc:date>
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         <title>5.2 - The Definite Integral</title>
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         <pubDate>Wed, 05 Jan 2011 21:25:18 GMT</pubDate>
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         <dc:date>2013-01-03T00:00:00-00:00</dc:date>
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         <title>5.9 - Approximate Integration</title>
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         <pubDate>Mon, 03 Jan 2011 01:50:27 GMT</pubDate>
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         <title>5.5 - The Substitution Rule</title>
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         <pubDate>Sat, 01 Jan 2011 03:57:17 GMT</pubDate>
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         <dc:date>2013-01-11T00:00:00-00:00</dc:date>
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         <title>5.4 - The Fundamental Theorem of Calculus</title>
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         <pubDate>Sat, 01 Jan 2011 03:52:54 GMT</pubDate>
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         <title>5.3 - Evaluating Definite Integrals</title>
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         <pubDate>Thu, 30 Dec 2010 04:40:05 GMT</pubDate>
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         <title>5.1 - Areas and Distances</title>
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         <pubDate>Mon, 27 Dec 2010 04:30:47 GMT</pubDate>
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         <title>2.9 - What Does f' Say About f</title>
         <description />
         <pubDate>Sun, 05 Dec 2010 04:36:47 GMT</pubDate>
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         <dc:date>2012-12-04T00:00:00-00:00</dc:date>
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         <title>2.8 - The Derivative as a Function</title>
         <description />
         <pubDate>Thu, 25 Nov 2010 18:36:02 GMT</pubDate>
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         <dc:date>2012-12-03T00:00:00-00:00</dc:date>
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         <title>4.9 - Antiderivatives</title>
         <description />
         <pubDate>Mon, 08 Nov 2010 01:18:27 GMT</pubDate>
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         <dc:date>2012-11-02T00:00:00-00:00</dc:date>
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         <title>4.6 - Optimization Problems</title>
         <description />
         <pubDate>Sat, 06 Nov 2010 18:24:38 GMT</pubDate>
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         <title>4.3 - Derivatives and the Shapes of Curves</title>
         <description />
         <pubDate>Sat, 30 Oct 2010 01:52:23 GMT</pubDate>
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         <dc:date>2012-10-24T00:00:00-00:00</dc:date>
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         <title>4.2 - Maximum and Minimum Values</title>
         <description />
         <pubDate>Mon, 25 Oct 2010 21:20:39 GMT</pubDate>
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         <dc:date>2012-10-22T00:00:00-00:00</dc:date>
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         <title>4.1 - Related Rates</title>
         <description />
         <pubDate>Mon, 25 Oct 2010 04:27:30 GMT</pubDate>
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         <dc:date>2012-10-19T00:00:00-00:00</dc:date>
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         <title>3.4 - Derivatives ofTrigonometric Functions</title>
         <description />
         <pubDate>Sun, 17 Oct 2010 23:46:57 GMT</pubDate>
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         <dc:date>2012-10-08T00:00:00-00:00</dc:date>
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         <title>3.7 - Derivatives of Logarithmic Functions</title>
         <description />
         <pubDate>Mon, 11 Oct 2010 20:49:11 GMT</pubDate>
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         <dc:date>2012-10-12T00:00:00-00:00</dc:date>
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         <title>3.6 - Implicit Differentiation</title>
         <description />
         <pubDate>Mon, 11 Oct 2010 01:31:59 GMT</pubDate>
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         <dc:date>2012-10-11T00:00:00-00:00</dc:date>
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         <title>3.5 - The Chain Rule</title>
         <description />
         <pubDate>Sun, 10 Oct 2010 00:40:48 GMT</pubDate>
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         <dc:date>2012-10-10T00:00:00-00:00</dc:date>
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         <title>About Me!</title>
         <description />
         <pubDate>Sat, 02 Oct 2010 22:52:08 GMT</pubDate>
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         <dc:date>2010-09-01T00:00:00-00:00</dc:date>
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         <title>3.3 - Rates of Change in the Natural and Social Sciences</title>
         <description />
         <pubDate>Sat, 02 Oct 2010 14:27:54 GMT</pubDate>
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         <title>3.2 - The Product and Quotient Rules</title>
         <description />
         <pubDate>Mon, 27 Sep 2010 00:50:13 GMT</pubDate>
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         <dc:date>2012-09-30T00:00:00-00:00</dc:date>
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         <title>3.1 - Derivatives of Polynomials and Exponential Functions</title>
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         <pubDate>Sat, 25 Sep 2010 19:57:50 GMT</pubDate>
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         <dc:date>2012-09-27T00:00:00-00:00</dc:date>
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         <title>2.8-2.9 - Key Terms</title>
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         <pubDate>Sat, 25 Sep 2010 19:17:36 GMT</pubDate>
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         <pubDate>Wed, 22 Sep 2010 19:48:25 GMT</pubDate>
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         <dc:date>2012-09-21T00:00:00-00:00</dc:date>
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         <pubDate>Wed, 22 Sep 2010 19:43:40 GMT</pubDate>
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         <title>2.5 - Limits Involving Infinity</title>
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         <pubDate>Wed, 22 Sep 2010 19:41:28 GMT</pubDate>
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         <dc:date>2012-09-16T00:00:00-00:00</dc:date>
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         <pubDate>Wed, 22 Sep 2010 19:39:07 GMT</pubDate>
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         <dc:date>2012-09-14T00:00:00-00:00</dc:date>
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         <title>2.3 - Calculuating Limits Using the Limit Laws</title>
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         <pubDate>Wed, 22 Sep 2010 18:01:47 GMT</pubDate>
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         <dc:date>2012-09-07T00:00:00-00:00</dc:date>
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         <title>2.2 - The Limit of a Function</title>
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         <pubDate>Wed, 22 Sep 2010 18:00:26 GMT</pubDate>
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         <title>2.1 - The Tangent and Velocity Problems</title>
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         <pubDate>Tue, 21 Sep 2010 17:55:49 GMT</pubDate>
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         <dc:date>2012-08-22T00:00:00-00:00</dc:date>
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