This book celebrates the 15thanniversary of the bi-annual symposium seriesMathematics and its Connections to the Arts and Sciences(MACAS), which was first held in 2005 following the continued collaboration of an international group of researchers from ICME Topic Study Group 21. The MACAS-conferences bring together scientists and educators who are interested in the connection between mathematics, arts and science in educational curriculum, while emphasizing on, as well as researching about, the role of mathematics.By pooling together these different approaches and viewpoints between...