sageMath (in short Sage) is a free and open source Computer Algebra System (CAS). It is one of the leading and comprehensive open source mathematical software which is distributed under open-source license (GPLVersion 3). It can cover almost all areas of mathematics, with varying levels of sophistication. It has all the built-in objects and functions for expressing mathematical concepts and calculations. SageMath is an idealopen source tool for teaching and research in Mathematics. This course will introduce you to sageMath.