Page 32 - 新思维数学学生用书7 样章

2 Expressions, formulae and equations

Algebra is the part of mathematics in which you use letters and other

symbols to represent numbers.
It is the most important part of mathematics because it links together the
other strands such as geometry, statistics and number.
Algebra allows you to take a situation and make it more general.

You can use formulae (rules) that work in every case. This can help you in
your everyday life, such as working out the area of your garden, calculating
the best deals at a supermarket, applying for a bank loan or hiring a car.

Algebra is used in all modern technology jobs, from creating websites on the
internet to making cell phones and smart televisions. As well as technology,
algebra is used in many other jobs, such as engineering, medicine,

economics, food science and traffic management.
Studying algebra helps you to think logically. It teaches you to solve
problems. This will help you in all aspects of life, not just in your algebra
lessons.

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