Counting, Representation… · B4 Mathematics

Lesson notes

Learning Objectives

Indicator: B4.1.1.3.4 - Recognise the relationship between factors and multiples.

By the end of the lesson, learners can:

Define factors and multiples in their own words and explain how the two are related.
List all factor pairs of a given number up to 50.
Identify whether a given number is a multiple of 2, 3, 4, or 5 using simple divisibility checks.
Explain that a number can be described as a multiple of each of its factors.
Solve simple problems that require finding factors or multiples in everyday contexts.

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Curriculum details

Strand: Number (Strand 1)
Sub-strand: Counting, Representation & Cardinality (1.1)
Content standard: B4.1.1.3 - Demonstrate an understanding of factors, multiples and squared numbers
Indicator: B4.1.1.3.4 - Recognise the relationship between factors and multiples.
Suggested placement: Term 1, Week 6 (Week 6 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 4-6), 2019, p. 11
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

E.g. 1 Factors represent the numbers that we can multiply to get a bigger number called the product or multiple. Since 12 = 4 × 3 , we can say 4 and 3 are factors of 12; and 12 is a multiple of 3 or a multiple of 4. Break given multiples into factors and pairs of factors of given numbers.

Wide colour mathematical teaching visual is organised as a table with horizontal divisions, vertical divisions,... — A wide colour mathematical teaching visual is organised as a table with horizontal divisions, vertical divisions, coloured regions. Visible labels, values, and notation include: E.g. Factors represent the numbers that we can multiply to; get a bigger number called the product or multiple.; Since12 = 4 X 3, we can say 4 and 3 are factors of; 12; and 12 is a multiple of 3 or a multiple of 4. Break; given multiples.

E.g. 2 Investigate even and odd numbers.
E.g. 3 Investigate numbers that are multiples of 2, 3, 4 and 5. How do you know a number is a multiple of 2? a multiple of 3? a multiple of 4? and a multiple of 5? (This is also known as the divisibility test).