On Tuesday, March 29, Dr. Yossi Elran from the the Weizmann Institute in Israel, visited with Ben Porat Yosef fourth and fifth grade Math by Mail students. Math by Mail is an interactive math enrichment program developed by the Davidson Institute, the educational division of the Weizmann Institute of Science in Israel. Dr. Elran shared a fascinating presentation with the students about the math behind card tricks, and conducted mathematical experiments involving mobius strips