Debian Jr. educational math

This metapackage will install educational math programs suitable for children. Some of the packages use mathematics that is well beyond the abilities of young children (e.g. fractals and cryptography), but hopefully using these let them gain an appreciation of the beauty of math from an early age. Other packages allow children to explore and learn math concepts in an engaging, interactive way. Some packages are more general, providing math activities as only one part of the package, e.g. bsdgames includes "arithmetic" in addition to other non-math games, and x11-apps provides xcalc.