Blumenau, Brazil Congress on Mathematical Modelling and Its Application Dr. Henry O. Pollak and Dr. Shoaf with the Chinese delegation in Blumenau in July 2013. Area school children present their mathematics project on the theme “Bear Math”. These fifth graders chose Recycliing as the theme for their project. The Congress on Mathematical Modelling and Its Application was held in Blumenau, Brazil in July 2013.