Each day of every month in The Mathematics Calendar 2019 has a problem, whose solution is the date. The challenge lies in figuring how to arrive at the answer, and possibly discovering more than one method of solving the date’s problem. Each month features a photo that is related to a mathematical concept in nature or science, for example the golden ratio, fractals and the interesting fact that zero is an even number.
- Size: Square
- Open height (mm): 610
- Open width (mm) 305
- Publisher: Quarto Publishing Group USA