Low grades if sleeping goes against circadian rhythm
Research continues to build showing teens should listen to their bodies when it comes to sleep. Schools should adjust if necessary.
STEM
Algebra 2 PARCC: imaginary number arithmetic
Doing arithmetic with imaginary numbers involving <em>i</em>, the square root of –1, is an algebra 2 skill and might be tested on PARCC.
Hackers shut down 911 in Baltimore, gov’t in Atlanta
Computer hackers have breached major government computers in Atlanta and Baltimore, giving us reason to raise an alarm.
Algebra 2 PARCC: Spring rate of change
Finding the rate of change of a function (from a graph, table, or function) can be required on the PARCC algebra 2 test.
State robotics championships this weekend
There's a statewide competition this weekend for robotics in just about all 50 states. National competition to follow.
In the great outdoors, students learn science better
Outdoor instruction with exploration built in has yielded results that beat learning in a classroom, new research out of Norway suggests.
Dim light can make animals dumb
The neurons in the brain make fewer connections in dim light, but they recover quickly after bright light returns.
Is coal clean? The president says it is.
Coal's not as clean as Pres. Trump tried to convince us it was, but we're making progress in cutting some pollutants from coal.
Total lunar eclipse occurs on Jan. 31
The lunar eclipse Wednesday before sunrise will be a rare event. Not as rare as some on social media claim. But rare enough.
Algebra 1 PARCC: Where’s the parabola?
Graphing parabolas is expected on the PARCC algebra 1 test (and in many algebra classes). Can you graph a quadratic function?