“This is a time when kids are making a really important transition from arithmetic to mathematics,” Neild said.

huh? what’s the difference? arithmetic (wiki) or mathematics (wiki) ?

Main Entry:

arith·me·tic Listen to the pronunciation of arithmetic

Pronunciation:

\ə-ˈrith-mə-ˌtik\

Function:

noun

Etymology:

Middle English arsmetrik, from Anglo-French arismatike, from Latin arithmetica, from Greek arithmētikē, from feminine of arithmētikos arithmetical, from arithmein to count, from arithmos number; akin to Old English rīm number, and perhaps to Greek arariskein to fit

Date:

15th century

1 a: a branch of mathematics that deals usually with the nonnegative real numbers including sometimes the transfinite cardinals and with the application of the operations of addition, subtraction, multiplication, and division to them b: a treatise on arithmetic2: computation , calculation

Main Entry:

math·e·mat·ics Listen to the pronunciation of mathematics

Pronunciation:

\ˌmath-ˈma-tiks, ˌma-thə-\

Function:

noun plural but usually singular in construction

Date:

1573

1 : the science of numbers and their operations, interrelations, combinations, generalizations, and abstractions and of space configurations and their structure, measurement, transformations, and generalizations 2 : a branch of, operation in, or use of mathematics

boil it down, bob, will ya?