Math Help from Arithmetic Through Calculus and Beyond
My name is James Sousa.  I teach mathematics at the community college level in Arizona.  For several years now I have been teaching my courses using free course materials (OER).  This allows students to have access to all of the course materials that are needed to be successful on day 1 of the class or before, which helps students be successful.  My contribution to OER is over 5,000 math video tutorials posted on YouTube for anyone to get help and learn mathematics.  The videos range from arithmetic through calculus and above. You can find organized playlist at and a searchable blog at I hope you find my videos helpful.  I'm always adding more videos improve the quality of the content and expand the coverage of topics.  It has been a learning experience for me too.  I hope you will find the videos helpful and worth your support.