Counting, Representation… · B3 Mathematics

Lesson notes

Learning Objectives

Indicator: B3.1.1.2.1 - Describe situations having opposite directions or values

By the end of the lesson, learners can:

Identify pairs of opposite actions, directions and values in everyday situations (e.g. up/down, forward/backward, gain/loss).
Play the “opposite game” with a partner, performing and describing opposite actions accurately.
Describe a given situation as having an opposite direction or value using correct vocabulary such as “opposite,” “reverse” and “the other way.”
Justify why two described situations are opposites, giving a clear reason for their thinking.
Work collaboratively with a partner to identify and demonstrate opposites, checking each other’s work for precision.

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Curriculum details

Strand: Number (Strand 1)
Sub-strand: Counting, Representation, Cardinality & Ordinality (1.1)
Content standard: B3.1.1.2 - Develop an understanding of positive and negative numbers
Indicator: B3.1.1.2.1 - Describe situations having opposite directions or values
Suggested placement: Term 1, Week 4 (Week 4 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. 46
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

E.g. 1. Invite pairs of learners to play the "opposite game" (i.e. a learner performs an action and the partner does the opposite whilst the rest of the class serve as referees)
E.g. 2. Make a space down the centre of the classroom and mark with chalk cross and ask a pair to stand on the cross with their back facing. the learners then move in the opposite direction a straight line