systems of equations

  • Solving Systems of Equations by Matrix Methods Practice Project Needs Beta Testers

    Hello mathematicians, puzzlers, and other curious people! Any Algebra 2/Precalc level students out there? I need student helper beta testers. This is a mystery picture graphing project, where the points to be plotted are solutions to systems of equations, and students are directed to use their choice of two matrix methods. Solving Systems of Equations…

  • What is “Suzy’s Freaking Pocket Change”?

    One problem with many math textbooks is that the application problems are nothing you would ever do. I call that kind of problem the “Suzy’s Freaking Pocket Change” category because if you had enough information to know that Suzy had $2.37 in her pocket in the form of 17 coins where there were twice as…