New multiplication: squares, diagonals, lattices
You may have noticed your child multiplying two- and three-digit numbers in a way that looks…
STEM
What is a mole (Avogadro’s Number)?
A “mole” is just a number. There are many wordy definitions of a mole to be…
Locate estimated square roots on a number line
A state department of education, as a question on the public-release form of a statewide standardized…
Millions of teens send voicemail to stars
A tech startup allows teens to send voicemail to their favorite stars. Most of the callers are teenage girls. Interesting.
Tornado touches down in Elburn; storms hit central IL
Severe storms and a tornado touchdown were reported across central Illinois.
Typhoon rocks southeast China; 1 million evacuated
http://news.bbc.co.uk/2/hi/asia-pacific/8191951.stm A typhoon has caused massive damage and loss of life in southeast China, the British…
Obituary: Walter Cronkite
Longtime news anchor Walter Cronkite died at the age of 92. He brought us the news when we trusted those who do.
Function table pattern recognition (algebra I)
The following question is in the public domain. It concerns the skill of analyzing a wide…
Role of macromolecules in a cell (HS biology)
The following question is in the public domain. It concerns a description of the unique characteristics…
Common Core State Standards Initiative leaves out 4 states
http://www.usatoday.com/news/education/2009-06-01-state-standards_N.htm Only four states (Alaska, Missouri, South Carolina, and Texas) have yet to sign on with…