A simple 2+2 problem became a paradox when real-world context intervened, sparking Kareem Carr’s debate on definitions and axioms. Carr and others show how context bent arithmetic, such as angles ...

On paper, it’s one of the simplest math problems in the world: 2+2. If you’re counting something, like screws at the hardware store, it’s pretty straightforward. But the lines blur in other contexts.

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. Students, parents ...

Children with 22q11.2 deletion syndrome (22q11.2DS) show substantial impairments in several areas of attention. Spatial aspects of attention are likely to contribute to numerical impairments, and ...

Classical conditioning is a way to learn using unconscious associations. Pavlov discovered classical conditioning when dogs started to salivate at the sound of a bell before they got food. The ...

Some call it the gig economy. Others call it the peer economy. Others, the collaborative economy, or “collaborative consumption.” Still others, the sharing economy. As Fast Company contributor Rachael ...