# Teaching Mathematics in Primary Schools

By Robyn Zevenbergen; Shelley Dole et al. | Go to book overview

CHAPTER 11
Rational number

Topics that fall under the heading of rational number include fractions, decimals, ratio and proportion, rate and percent. These topics are linked mathematically but conceptually are subtly different. In this chapter, key ideas associated with the topics of fractions, decimals, ratio, rate, proportion and percent and their interlinked nature are presented. Approaches for enhancing students' knowledge of these topics are described.

Common and decimal fractions

Fractional numbers can be represented in fraction form (e.g. 1/4) and in decimal form (e.g. 0.25) and the terms 'common fraction' and 'decimal fraction' respectively are used to distinguish the two symbolic representations. The word fraction is frequently applied to numbers in both fraction form and decimal form, yet there are subtle conceptual differences between common fractions and decimal fractions. Common fraction understanding is based on the part/whole concept. Decimal fraction understanding stems from a combination of an understanding of common fractions and whole number and place value knowledge. For simplification, in

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Teaching Mathematics in Primary Schools

• Title Page *
• Foreword v
• Contents vii
• Chapter 1 - The Changing Face of Primary Mathematics 1
• References *
• Chapter 2 - Theoretical Foundations for Contemporary Mathematics Education 21
• References *
• Chapter 3 - Language and Mathematics 33
• References *
• Chapter 4 - Diversity and Equity 47
• References *
• Chapter 5 - Planning for Teaching 63
• References *
• Chapter 6 - Assessment 79
• References 105
• Chapter 7 - Working Mathematically 106
• References *
• Chapter 8 - Early Number 121
• References 147
• Chapter 9 - Basic Facts and Mental Computation 149
• References *
• Chapter 10 - Written Algorithms 176
• References *
• Chapter 11 - Rational Number 197
• References *
• Chapter 12 - Patterns and Algebra 233
• References *
• Chapter 13 - Measurement 250
• References 280
• Chapter 14 - Chance and Data 281
• References *
• Chapter 15 - Space 310
• References *
• Index 340
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