Geometry PARCC question: equidistant in plane
Circles are defined as all points in a plane equidistant from a given point, the center. All radii of a circle are congruent by definition.
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Geometry PARCC question: diagonal length
The diagonal of a square can be determined using the Pythagorean Theorem or, just as well, with trigonometry.
The best bees keep expertise to themselves
Honeybees, especially those who've been around the block a few times to gather nectar, don't like to share their knowledge with rookie bees.
Geometry PARCC question: triangle dilation
When it comes to dilations of triangles, can you recognize similar and congruent parts of the before and after images?
Algebra 1 PARCC question: exponential websites
Modeling real-world situations sometimes requires a linear model, sometimes an exponential model, sometimes a coffee model.
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.
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.
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.