This task-driven text emphasizes strategies and processes and is very different from the usual style of mathematics textbooks. Each of the sections is designed to stand alone so that they can be studied in any order or dipped into as needed. The Second Edition has been updated to meet the needs of anyone wanting to refresh their knowledge and understanding of mathematics. There is an emphasis on learning and doing mathematics, with an expanded section on measures and proportion, and statistics.
Chapter 3: Measures and Proportion
Measures and Proportion
This chapter is concerned with measures and their uses. The issues considered include the following:
- the purpose of measurement;
- absolute and relative comparison;
- discrete and continuous measures;
- use of units;
- gradients and trigonometric ratios.
The chapter is subdivided into four parts:
- measurement and comparison;
- measurement scales;
- other measurement issues;
- ratio and proportion.
Measurement and Comparison
Measurements are made in particular contexts and for particular purposes.