Numerical Models Based on an Approach of "Complexity" for Geoscience Classes - Go Game Model, Wind Ripples, Landscape Evolution etc. - Yoshio Okamoto Tennoji High School attached to Osaka-Kyoiku University, 4-88 Minami-Kawahoricho, Tennoji-Ku,Osaka, JAPAN 543-0054 yossi@cc.osaka-kyoiku.ac.jp