Algebra 1 PARCC: system of inequalities
Creating 2 equations in 2 unknowns to describe a set of conditions is a skill algebra 1 students need if they'll be taking the PARCC test this spring.
STEM
Danville students go to work on balloon festival
A class of elementary students from Danville, IL, will serve as ambassadors and designers for a part of a hot-air balloon festival. Homework required.
Algebra 1 PARCC: racing cars
How would you figure out (and explain) when one car, traveling at a given speed, will overtake another car that had a head start?
Nearby star has 7 Earth-sized planets: NASA
Are we alone? NASA scientists have published their discovery of 7 Earth-sized planets orbiting a red dwarf star that's only 39 light years away.
IL among areas where bee decline hurts crops
Honeybees are important pollinators for crops. If the bees decline, as they are in many important regions of the US, crops suffer.
Algebra 1 PARCC: rewrite polynomial
Adding, multiplying, & subtracting polynomials is tested, quite thoroughly, on the PARCC algebra 1 test, used in Md. and some middle schools in IL.
Spray-on repellents are best against mosquitoes
Which repellent is the best at protecting you against mosquito bites. Some entomologists in New Mexico asked that question. Skip the sonic ones, they say.
Non-issues abound about autism with Trump
Pres. Trump spoke a little, and a little too dimly, about autism at a White House event yesterday with US Ed. Sec. Betsy DeVos.
Sleeping, our brains make beautiful waves
Scientists in Mass. have found a new way to analyze brain waves to determine what stage of sleep we're in during the night. Pretty.
On Charles Darwin’s 208th birthday
Today is Charles Darwin's birthday, and we celebrate it by talking about the intersection of science, religion, the care of our planet, and technological advances.