Vocabulary - Fractions, decimals and percentages

The vocabulary set provided by KS2Gems in 2020 offers a comprehensive list of terms related to fractions, decimals, and percentages, essential concepts in mathematics education for Key Stage 2 students. The terms cover the fundamental elements of fractions, beginning with the basic idea of a 'fraction' representing a 'part' of a 'whole'. Students learn that a whole can be divided into 'equal parts', with common fractions such as 'one half', 'one quarter', and 'one third' illustrating parts of a whole. The vocabulary extends to include 'two halves', 'two quarters', 'three quarters', and 'four quarters', helping students understand how multiple parts can make up a whole.

Further expanding on the concept, the vocabulary introduces terms such as 'one tenth', 'eighth', 'sixth', 'fifth', and 'twentieth', which represent different proportions of a whole. Students also encounter the distinction between a 'proper fraction', where the numerator is less than the denominator, and an 'improper fraction', where the numerator is greater or equal to the denominator. The term 'mixed number' describes a number that combines a whole number with a fraction. Understanding the 'numerator' and 'denominator' is crucial, as is the concept of 'equivalent' fractions and the process of simplifying fractions to their 'simplest form'. Additionally, the vocabulary covers 'decimal fractions' and the use of the 'decimal point' and 'decimal places'. Students learn how to 'convert' between fractions and decimals and how to 'round' to the nearest whole number or to a specific number of decimal places. The terms 'percentage', 'per cent', and symbols such as '%' are introduced, along with the concept of 'ratio' and how to express a 'fraction of a quantity' or 'number'. This vocabulary set is a valuable resource for educators to help students grasp these mathematical concepts with clarity.