I have given a talk with the title "Geometry Ancient and Modern" as follows:
<UL>
<li>UKMT Teachers meeting, Leeds, July 2001.
<li>IMO Lecture, Royal Society, September 2001.
<li>de Morgan Society, UCL, November 2001.
<li>IMA, Leicester, January 2002.
<li>Dodgson Society, Rugby School, March 2002.
<li>Portsmouth High School, March 2002.
<li>Teachers Conference, King's College, April 2002.
<li>LMS Popular Lecture, Strathclyde, June 2002.
<li>LMS Popular Lecture, Leeds, June 2002.
<li>LMS Popular Lecture, London, July 2002.
<li>Trinity School Croydon, November 2002.
<li>Sherborne School, March 2003.
<li>MEI conference, Nottingham, July 2003.
</UL>


The talk is available from the
<a href="http://www.lms.ac.uk/activities/education_com/videos_purchase.html">London Mathematical Society</a> on video.
<p>
Here are the
<a href="http://www.mth.kcl.ac.uk/~jrs/gazette/A&M_LMS.pdf">slides</a> for the talk (PDF format) with the accompanying 
<a href="http://www.mth.kcl.ac.uk/~jrs/gazette/A&M.gsp">Geometer's Sketchpad</a> and
<a href="http://www.mth.kcl.ac.uk/~jrs/gazette/A&M.mws">Maple</a> files to download, for those that have the software to run them. Alternatively, all of the material and more besides is covered in the
<a href="http://www.mth.kcl.ac.uk/~jrs/gazette/A&M_full.pdf">full version</a> of the slides (PDF format).