Standardized testing (now dubbed ‘high stakes testing’) has something in common with Carnegie Units. They are boundaries educators face, push against, and climb over. They are also barriers that in ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Think of the most fussy science teacher you ever had. The one who ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. This week, Sam Kean takes a look at some ridiculously precise ...

A primary limitation of cannabis research thus far has been the inconsistent quantification of exposure to the plant’s main psychoactive ingredient – Δ 9-tetrahydrocannabinol (THC) – across different ...