Archive for October, 2012

My NCCTM talk.

October 25, 2012 3 comments

Click here to see a link to the Prezi of my NCCTM talk.  In this talk, I begin talking about the different ways to factor polynomials.  I tell the story of the Lizzy Method.  This method is named after a girl, who was 16, discovered a new way of factoring.  However, factoring seems to be a separate topic with little connection.  ParabolaX, a free App in iTunes, can help bring a connection to linear factors and quadratics.  After playing this game, one may see that linear  polynomials could be the base of teaching quadratics and other higher order polynomials.  Currently, students see a sections of adding, subtracting, and multiplying polynomials.  However, the polynomials included are quadratics, cubics, and higher degrees and students don’t even know what those graphs look like or how those polynomials are formed.  This means, possibly, students are getting exposed to math information with little connection.   Another way would be to move from linear, to quadratic, to cubic and so forth and each section you would go through the basic operations of adding, subtracting, and multiplication.  Also, in each section we would see the connection back to linear factors.

Categories: presentations