Since it doesn't begin with the

equals sign, Excel treats it as text instead.

The item after the second

equals sign is the volume of a cylinder of rice of height 'h' and diameter 'd' to go with the curry.

It is also very important at this stage to articulate the notion that the

equals sign separates two equivalent expressions and does not represent "What I need to do" on the left hand side of the

equals sign and "an answer" on the right hand side.

Fostering relational thinking while negotiating the meaning of the

equals sign.

The ability to view the

equals sign as a sign of equivalence can be classified as a threshold concept of algebra.

In this puzzle you need to find the number in the box that gives the same answer on both sides of the

equals sign.

Firstly he came up with the

equals sign "=", which is fairly useful as these things go.

Among those inventions that will be highlighted are Richard Trevithick's steam engine and the

equals sign, the brainchild of 16th-Century mathematician Robert Recorde from Tenby.

We suspect that the active use of the equal sign in the construction of their own true number sentences with four terms in session 2, fostered growth for many students as they tried to apply their conceptions of the

equals sign.

Place your cursor where you want to insert a cell and then press Ctrl and a plus sign (+) either on the numeric keypad or above the

equals sign (=).

William Grove, one of the four great Welsh scientists alongside Alfred Russell Wallace, evolutionary biologist colleague of Charles Darwin, Robert Recorde, the inventor of the

equals sign, and David Hughes, the inventor of the microphone, is the man who brought the fuel cell to the world.

There is considerable evidence, however, that children, especially those in the age range 5-8 years, consider the

equals sign to be an operator rather than a relational symbol (Behr, Erlwanger, & Nichols, 1980).

But thanks to the invention of the

equals sign by a Welshman centuries ago, two small parallel lines are now universally accepted to represent equality in maths.

These include Robert Recorde ofTenby, the inventor of the

equals sign, and Edward Llwyd, the influential 17th century naturalist who was brought up in the Welsh borders.

James Peto, curator of the Design Museum in London, believes that Robert Recorde's simple

equals sign - familiar to every school pupil but revolutionary at the time - is better than complex models of the planets or human anatomy.