B5 Mathematics · Term 1 Week 12: Number: Fractions

Lesson notes

Learning Objectives

Indicator: B5.1.3.1.2 - Compare and order fractions

By the end of the lesson, learners can:

Find the Lowest Common Denominator (LCD) of two or more fractions by listing multiples.
Rewrite fractions as equivalent fractions using the LCD to enable comparison.
Compare two or three fractions using the symbols less than (<), greater than (>), or equal to (=) with correct justification.
Order a set of three or more fractions from smallest to largest and from largest to smallest.
Convert fractions to decimals or percentages as an alternative strategy for comparing and ordering fractions.

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Curriculum details

Strand: Number (Strand 1)
Sub-strand: Number: Fractions (1.3)
Content standard: B5.1.3.1 - Demonstrate understanding of strategies for comparing, adding, subtracting and multiplying fractions
Indicator: B5.1.3.1.2 - Compare and order fractions
Suggested placement: Term 1, Week 12 (Week 12 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Source document note: The official curriculum document has a fault in this entry, so the curriculum text above is transcribed exactly as printed:

exemplars - p.72
Curriculum reference: Mathematics Curriculum for Primary Schools (Basic 4-6), 2019, p. 72
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

E.g. 1 Find the Lowest Common Denominator (LCD) of the fractions and use this to express their equivalent fractions and use them for the comparison; e.g. which is larger, 5/6 and 3/4 or 2/3?
E.g. 2 Change the fractions to percentages or decimals and use them for the comparison. i.e. 5/6 = 0.83, 3/4 = 0.75, and 2/3 = 0.66, and compare.

Figure from the b5 mathematics curriculum, printed page 72

 The fractions are stacked and are written inline.