Learning Center USA was established in 1973 to provide social studies teachers with lessons which make it easier and more enjoyable for them to teach and their students to learn. Since the beginning, our only product line has been high-interest reproducible social studies activities.      The lessons have been classroom tested to ensure that they are of the highest quality. Our aim has always been to create activities which students love to do as individuals, in small groups, or with the entire class. A typical lesson has 3 to 5 activity sheets on blackline masters. It is quick and easy to make copies for class members. Lesson plans and answer keys are included. Teachers no longer have to write their own creative activities, but instead can focus on their many other professional responsibilities.      The eight social studies programs published by Learning Center USA have hundreds of lessons which teachers tell us are interesting, exciting, challenging, and fun -- for them as well as their students. We believe there is a direct correlation between how much a student enjoys class and how much they learn.      Learning Center USA appreciates that more than a million students across the country now use our activities each school year. We also value the special relationship we have enjoyed with America's social studies teachers for such a long time, and look forward to serving them in the years ahead.