This online exercise lets students practice vector addition. They choose the precision of the test by selecting a target size, then estimate the sum of the two vectors by dragging and dropping a third arrow. Points are...

A unit on nutrition, with charts that tell why one eats as well as what one should eat. Each class of food has a definite function; over fifty nutrients are needed for good health and they have been divided into six...

This series of videos, created by Salman Khan of the Khan Academy, features topics covered from very basic algebra all the way through algebra II. This is the best algebra playlist to start at if you've never seen...

More than 50 "informal notes" by Kevin Brown on algebra. Kummer's Objection; irreducibility criteria, multiple linear regression, string algebra, characteristic polynomial of a matrix, iterated means, sums of powers,...

This course provides an introductory algebra course. Topics include groups, vector spaces, linear transformations, symmetry groups, bilinear forms, and linear groups. The materials include lecture notes, exams and...