Thursday, March 3, 2011
Factoring Positive 3rd Degree Polynomials
Factoring 3rd degree polynomials can be intimidating not to mention frustrating if all you have to go by is some rules in a textbook, but when you can see it it's EASY. This student is autistic and we just made a game of it once we had done a few examples and were familiar with the names of the pieces. Refer to the concepts page and use the 3 period lesson to make sure we know the names of the symbols and and what the symbols represent. The use of color markers helps but isn't necessary.
"Well, that's EASY!" She laughs and writes it down. We do a few not pictured here and then she has a chance to make one up of her own. Of course she makes a big one:
Here is the screencast:
Here is a much better explanation of factoring by grouping on YouTube. The one on the sccreencast is verbal only and lame...the YouTube vid is an actual lesson with a 15 year old cheerleader who is freaking out because of all the symbols...
Find me on Facebook and be sure to dig around at the house of math and on this blog for more. There is and will be a lot more on this on the Advanced Algebra Page which is password protected; how to do negative expressions for example is well covered as are many other topics.. Passwords now cost 3 bucks for a month, and 12 for a year pass. And soon they will cost more than that.