Think of it as a kind of trial run (or a
set of practice problems) with a company that's trying to get something into production and out the door.
In a
series of practice problems, learners use the substitution method to solve systems of linear equations, also called «simultaneous linear equations.»
The way math is currently taught, «students typically work a set
of practice problems devoted to the immediately preceding lesson, which means they often know the appropriate strategy for each problem before they read the problem,» says Douglas Rohrer, professor of psychology at the University of South Florida.
In a
series of practice problems, learners use the addition or subtraction method to solve systems of linear equations, also called «simultaneous linear equations.»