This entry was posted in Videos and tagged functions, khan academy on Septemby Suman Ganguli. Introduction to piecewise functions: Sal explains what a piecewise function is, and finds the formula of a piecewise function given its graph:įinally, if you’re interested, here is a TED talk Salman Khan gave 5 years ago, where he discusses how and why he created Khan Academy: “ Let’s use video to reinvent education.” Here is a couple videos from the Algebra 2 sequences on Functions and Graphs which cover some of the topics we discussed from Chapter 2: You can find videos organized into courses, not only on math but on many other academic subjects as well.įor example, he has sets of videos on Algebra, Algebra 2, and Precalculus. If a syllabus is not available to you, most precalculus courses cover the following topics: sets, real and complex numbers, introduction to trigonometry Preparing for Precalculus Part 1 Pre-calculus involves graphing, dealing with angles and geometric shapes such as circles and triangles, and finding absolute values. No ads, no subscriptions just 100 free, forever. I previously mentioned PatrickJMT‘s many many videos as a great resource to help you review and understand the material.Īnother popular source of videos is the Khan Academy (created by a guy named Sal Khan). You’ve come to the right place Get Free Content to Use with Precalc with Limits Precalculus Khan Academy is a nonprofit with thousands of free videos, articles, and practice questions for just about every skill.

Khan precalculus