Classic Math SAT Method: Trial and Error

Phil Keller's take on the benefits of trial and error on the math SAT. Trial and error is often easier, quicker, safer. And there are traps that are occasionally built into a problem that can trip up students who use school algebra -- but not the kids who use trial and error!
Phil will be posting more short videos in this channel over the next few weeks to give you a fast look at some of the key methods and ideas that show up on every SAT.
You can also find pretty much everything he knows about the SAT written in his not-very-long book, "The New Math SAT Game Plan: which you can find here:
www.amazon.com/New-Math-SAT-G...