Turn and talk with sentence stems: Give sentence starters at multiple levels: “Multiplication is…” for some students, and ...

This lesson covers solved numerical problems on molarity, molality, mole fraction, and percentage concentrations to help you clearly understand solution concentration concepts in chemistry.

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter. Sir Keir Starmer’s handwritten letter to Angela Rayner went beyond the normal resignation niceties. He spoke of ...

Multiplication is a fundamental skill in mathematics, but some number combinations can appear tricky. Imagine being able to quickly multiply numbers like 35 x 35 or 65 x 65 in your head, almost ...

A preferred buyer for the UK’s largest water company would “multiply” the problems of the troubled utility firm, it has been warned at Westminster. Concerns over the selection by Thames Water of US ...

It’s surprisingly difficult to prove one of the most basic properties of a number: whether it can be written as a fraction. A broad new method can help settle this ancient question. In June 1978, the ...