**Khan Academy** is a nonprofit organization that offers a variety of online mathematics courses in a wide number of languages. While this website may not be best suited for MATH141, it can be worthwhile as further practice.

**Paul's Online Notes**. A set of free online (and downloadable) notes and/or tutorials for an Algebra course that the site's creator taught at Lamar University.

Where to find **books about math** on the library shelves:

QA1-939 Mathematics

QA1-43 General

QA47-59 Tables

QA71-90 Instruments and machines

QA75-76.95 Calculating machines

QA75.5-76.95 Electronic computers. Computer science

QA76.75-76.765 Computer software

QA101-(145) Elementary mathematics. Arithmetic

QA150-272.5 Algebra

QA273-280 Probabilities. Mathematical statistics

QA299.6-433 Analysis

QA440-699 Geometry. Trigonometry. Topology

QA801-939 Analytic mechanics