All the talk about bringing America's school students' test results up to the level of those in Japan and other countries is putting a lot of pressure on kids and teachers. The pressure to learn more at an earlier age causes some to worry kids will burn out and lose interest in learning. But that doesn't seem to be happening. An education expert says a bigger concern is not all kids have an equal opportunity to learn because of disparaties in education funding. Minnesota Public Radio's Dan Olson visited a Hopkins school and has more. It's been 40 years since Jack Anderson was a 4th grader, and his memory is foggy on what his parochial and public school teachers in Brainerd demanded that he learn. He knows with a certainty, however, that he is asking a great deal more of his 25 students. tape . . . the exposure they get in school, the techno