This series of videos, authored by Salman Khan of the Khan Academy, features non-trigonometry pre-calculus topics. A solid understanding of all of the topics in the "Algebra" playlist should make this playlist pretty...

QuickMath is one of the most useful sites for common but tedious mathematical calculations. It is a free "online calculator that solves equations and does all sorts of algebra and calculus problems." Separated into many...

Created by William Barker and David Smith for the Connected Curriculum Project, this module develops a mathematical model for decay of radioactive substances, and a technique for deciding whether quantitative data fits...

Created by David Smith for the Connected Curriculum Project, this module develops multiple representations for decay of radioactive substances, in the context of environmental policies on a university campus, and...

Created for the Connected Curriculum Project, the purpose of this module is to study differential equations that model falling objects subject to air resistance -- for example, raindrops -- and to develop Euler's Method,...