Learn about artists who teach at a PechaKucha Sunday, Jan. 20, 6 p.m. Art Force will host the free, open-to-public event  at 1400 Van Buren St. NE.. In this fast-paced format, artists show and explain work with 20 slides in 20 seconds each. The program will feature Susan Armington, Suzann Beck, Marko Fields, Candy Kuehn, Layl McDill, Ernest Miller, Malcom Potek, Wayne Potratz, and Denise Tennen. Audience discussion and questions follow after all have presented. Artists will address how and why…