The Saint Paul School District has begun testing all kindergarten and second grade students for possible inclusion in gifted and talented programs. The new system uses classroom observation, rather than a written test, to identify students. District officials say they hope the changes will bring more minority and low income children into the accelerated learning programs. Minnesota Public Radio's Tim Pugmire reports... (Sound) In an algebra class at Saint Paul's Capitol Hill Magnet School, 6th and 5th grade students and their teacher are discussing how to use mean, median and mode to ananlyze statistics. These elementary students are already working on material designed for 8th and 9th graders, and they're devouring it. Sixth