How is that doubling and not squaring? Is that a domain-specific use of the word doubling that's different from the everyday one? Normally "doubling" would be the function f(x) = 2x. Click to expand..

The Hechinger Report covers one topic: education. Sign up for our newsletters to have stories delivered to your inbox. Consider becoming a member to support our nonprofit journalism. “I am the next ...

Sign up for The Morning Report with all your must-read news for the day. When Tom Kane looked at the results of the latest Education Recovery Scorecard, he noticed a ...