Counting, Representation… · B3 Mathematics

Lesson notes

Learning Objectives

Indicator: B3.1.1.3.2 - Count forwards and backwards with positive and negative whole numbers through zero

By the end of the lesson, learners can:

Count forwards from any negative number, such as -5, through zero to a positive number, such as 4, using the number line.
Count backwards from any positive number, such as 3, through zero to a negative number, such as -7, using the number line.
Identify the missing number when counting forwards or backwards through zero in a given sequence.
Use the number line to verify whether a count through zero is correct.
Describe counting through zero using real-life situations involving temperature, debt, or depth.

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Curriculum details

Strand: Number (Strand 1)
Sub-strand: Counting, Representation, Cardinality & Ordinality (1.1)
Content standard: B3.1.1.3 - Identify negative numbers up to -10
Indicator: B3.1.1.3.2 - Count forwards and backwards with positive and negative whole numbers through zero
Suggested placement: Term 1, Week 7 (Week 7 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.47
Curriculum reference: Mathematics Curriculum for Primary Schools (Basic 1-3), 2019, p. 47
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

E.g.1. Display the number line, mention a number and ask learners to move/hop from the number to another number through zero.

Number line for hopping through zero. Visible labels, values, and notation include: 6-5-4-3-2-1; 2; 3.

 The document prints this indicator's code as B4.1.1.3.2, inside the B3 section and under content standard B3.1.1.3 (Identify negative numbers up to -10). It is transcribed here as B3.1.1.3.2 so that it files under its own grade and standard; a reviewer should confirm the printed code and decide.