## new math

new math a system for teaching fundamental concepts of mathematics by the use of set theory

## new math

noun

Mathematics taught in elementary and secondary schools that constructs mathematical relationships from set theory. Also called

*new mathematics*.## new-math

Noun

(*uncountable*)

- (pejorative) The methodology used to arrive at an unreasonably incorrect answer for a mathematical calculation.
*She quickly calculated the tip to be $45.00 on the restaurant tab of $110.50, apparently using new math.*

Origin

From the dramatic change in teaching practices for mathematics in the 1960s in America.