Some teen health issues linked with screen time
Watching too much TV has been linked to health problems like obesity and poor diet, but more and more, those screens are on smartphones. Same issues.
STEM
Surf the net in class, get lower final exam scores
Students who used a laptop during class lectures, for non-academic use, like surfing, tend to get lower scores on the final exam in the course.
STEM enrichment may not help math scores
For students in 1 UK study, continued participation in STEM enrichment activities, like camps and other hands-on fun activities, don't appreciably boost math scores.
Mutations in ‘essential’ genes linked to autism
Mutations in those genes that are essential to life have been linked to autism in a huge review of family data in a few huge databases. From U.Penn.
Congrats, brother, on your new STEMpathy job
New jobs, a large number of them, involve both STEM skills and knowledge as well as interpersonal skills, like communication and management skills.
When ice melts on Earth, it happens layer by layer
Even at very cold temps, the surface of ice is liquid, which makes it slippery. As it warms, deeper layers melt one at a time.
Miss. students rent their desks, learn finances
Learning how to manage money is part of financial literacy. 2 teachers in Miss. have found a creative way to drive those lessons home.
Based on acidity, where is the soil most fertile?
A research team in Calif. has produced a global map of soil pH, linking the fertility of the soil to wet and dry climates, as well as to human need for crops.
Grade 8 PARCC math: geometric transformations
Transformations are introduced in 8th grade under the Common Core under the umbrella of congruency (and similarity).
Grade 8 PARCC math: Pythagorean distance
Determining the distance along the diagonal of a right triangle using the Pythagorean Theorem is new to 8th graders under the Common Core.