Algebra 1 PARCC question: compare job offers
The point at which something more expensive to buy becomes less expensive because operating costs aren't as high can be modeled with a system of linear equations.
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Nights are warming faster than days
Observations from the last fifty years have shown that the nights have been warming much faster than the days.
Algebra 1 PARCC question: graph Ay + Bx = C
We have lots of equivalent ways of writing equations for lines, or linear functions, including slope-intercept, point-slope, and Ax+By=C.
Dangers of binge drinking in college
Binge drinking is a problem, in more ways than one, on college campuses across the US. Folks at Alabama have some advice.
The road to the Illinois primary turns violent
Violence has erupted on the campaign trail, mainly surrounding the campaign stops of Republican candidate Donald J Trump.
Algebra 1 PARCC question: predict from data
You can find the average of a set of data and use it to model the behavior of a system that is under investigation in the real world.
Algebra 1 PARCC question: complete the square
We complete the square here, to solve a quadratic equation. Also, the question provides some useful tips about the solutions to quadratic equations.
Neuroscience doesn’t make teaching better
Can teachers become better teachers if they understand which structures of the brain influence the learning of certain tasks or behaviors? Probably not.
Algebra 1 PARCC question: proof of slope
A quick proof by induction and then minor examples allow you to test the hypothesis that the slope of a line is constant over the whole line.
Even Republicans complain about Trump
The primaries are starting to build to a climax, and some candidates are getting ahead in the delegate count. Nominations give us fewer choices.