Number Operations (Addition… · B3 Mathematics

Lesson notes

Indicator: B3.1.2.5.1 - Represent and explain multiplication using equal groupings

By the end of the lesson, learners can:

Create equal groupings from a given quantity of objects, such as making 3 groups of 4 from 12 straws.
Write a multiplication equation (fact) to match a given equal grouping, for example 3 groups of 4 written as 3 × 4.
Read a multiplication equation aloud using the language “groups of” (for example, reading 2 × 6 as “2 groups of 6”).
Explain in their own words why multiplication is repeated addition of equal groups, using concrete objects or drawings.
Identify and describe equal and unequal groupings, justifying why a grouping is or is not equal.

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Strand: Number (Strand 1)
Sub-strand: Number Operations (Addition, Subtraction, Multiplication and Division) (1.2)
Content standard: B3.1.2.5 - Demonstrate an understanding of multiplication up to 5 x 5
Indicator: B3.1.2.5.1 - Represent and explain multiplication using equal groupings
Suggested placement: Term 2, Week 2 (Week 14 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. 53
Transcribed from the official NaCCA publication. Check this page against the source.

Learners make formation of sets of equal object from a given quantity. For example with 12 straws Learners make groupings such as:

3 groups of 4 ⇒ 3 × 4
4 groups of 3 ⇒ 4 × 3
2 groups of 6 ⇒ 2 × 6