Fractions · B2 Mathematics

Lesson notes

Learning Objectives

Indicator: B2.1.3.1.2 - Count in halves and quarters (fourths) using concrete and pictorial representations of halves and fourths.

By the end of the lesson, learners can:

Count concrete objects (such as paper cut outs, orange slices, or card pieces) in halves using the language “one-half, two-halves, three-halves, four-halves”
Count concrete objects in fourths using the language “one-fourth, two-fourths, three-fourths, four-fourths”
Count pictorial representations of halves and fourths and state the total using the correct fraction language
Match a given number of fraction parts (halves or fourths) with the correct counting name
Work in pairs to count and record halves and fourths from pictures, explaining their answers to a partner

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Curriculum details

Strand: Number (Strand 1)
Sub-strand: Fractions (1.3)
Content standard: B2.1.3.1 - Develop an understanding of halves and fourths using concrete and pictorial representations [Exclude notation here]
Indicator: B2.1.3.1.2 - Count in halves and quarters (fourths) using concrete and pictorial representations) of halves and fourths.
Suggested placement: Term 2, Week 4 (Week 16 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.
Curriculum reference: Mathematics Curriculum for Primary Schools (Basic 1-3), 2019, p. 30
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

E.g. 1. Show several fourths of concrete objects (or card cut outs) and have them count them in fourths (using the language one-fourth, two-fourths, three-fourths, etc.)
E.g. 2. Show learners several pictorial representations of fourths and have them count (using the language one-fourth, two-fourths, three-fourths, etc.)

Fourths of shapes, for counting in fourths. The wide colour table is arranged with horizontal divisions, vertical... — Fourths of shapes, for counting in fourths. The wide colour table is arranged with horizontal divisions, vertical divisions, coloured regions.