<p>My son took Cryptology at CTY last summer and is looking for something more challenging this summer. A lot of the programs sound like he would be with older kids - not the best socially. What would you recommend that is more challenging than CTY but still appropriate for someone 14-15 years old?</p>
<p>[Summer</a> Math Camps and Programs for High School Students](<a href=“http://www.ams.org/programs/students/high-school/emp-mathcamps]Summer”>AMS :: Summer Math Camps and Programs for High School Students) has a lot of great camps.
Ross math camp is well regarded, as are many others on the site. You’ll probably find that many are geared to ‘high school students’, meaning there will be people his age as well as eighteen year old kids. The less advanced camps will likely be for a more specific age range.</p>