Grade 8 PARCC math: functions as rules
Working with functions comes to the Common Core in 8th grade, and the properties of functions described in different ways can be compared.
STEM
Grade 8 PARCC math: scientific notation
Do you know how to put numbers expressed in "scientific notation" in order from least to greatest? You'll need to if you're taking the PARCC 8th-grade math test.
Comparing quantities helps more than counting
New research from Vanderbilt shows that preschool math skills support 1st-grade math skills, which in turn support fifth-grade math knowledge.
Grade 8 PARCC math: integer exponents
Another new topic for 8th graders under the Common Core is the idea of expressions in exponents. Do you know the rules?
Cassini sees Saturn’s hexagon-shaped jet stream
An intriguing jet stream can be found in Saturn's atmosphere, and NASA's Cassini sent back a few pics from the latest phase of its mission.
Flyers players relate science, math to hockey
Getting kids interested in learning about math and science, as it relates so much to the world around them, means something in Penn., Del., & N.J.
Dementia less common among the well-educated
Challenging and using your brains throughout life seems to reduce the chances you'll develop dementia in old age. Go school.
New elements, up to 118 now, get names
It's official: The 7th row in the Periodic Table is now complete, and all the elements have names, as of Wednesday.
We can use genetics to clean the Chesapeake
A group of Md. students noticed that genetically engineered bacteria could eat plastic trash. Hmm. How could we use that here?
One little mutation can mean so much
How did unicellular organisms become multicellular? It could come down to a single mutation 600 million years ago in their DNA.