PERHAPS A GIFT VOUCHER FOR MUM?: MOTHER'S DAY
Andy Liu obtained his doctorate in mathematics as well as a professional diploma in elementary education in 1976, qualifying him officially to teach from kindergarten to graduate school. He was an academic at his alma mater for over thirty years, where he is currently a Professor Emeritus. During that period, he ran a mathematics circle for students in upper elementary or junior high schools. The members had published over fifty papers in scientific journals. Andy had served as the deputy leader of the USA team and the leader of the Canadian team in the International Mathematical Olympiad. He had chaired its Problem Committee once and was a member three other times. He had authored or co-authored eighteen books in mathematics, and had been credited as an editor or a co-editor for several others.
"""Andy Liu is famous for his leadership in the International Mathematical Olympiad. Here he cleverly and engagingly recasts 40 recreational problems from the Tournament of the Towns into tales involving Greek myths and legends. The resulting stories motivate the problems far better than the original posings. The problems involve logic, combinatorics, and geometry, but no calculus. Solutions are offered, together with the texts of the original problems."" - Mathematics Magazine"
