Patterns and Relationships · B5 Mathematics

Lesson notes

Learning Objectives

Indicator: B5.2.1.1.6 - Determine and explain why a given number is or is not the next element in a pattern

By the end of the lesson, learners can:

State the pattern rule for a given sequence and use it to calculate the next expected element
Test a given number to determine whether it fits the pattern rule
Explain in words why a given number is or is not the next element in a pattern
Identify errors in a pattern and describe the correction needed using mathematical language such as “two more”, “five more” or “twice”
Solve a simple problem involving a suspect element in a pattern and justify the answer

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Curriculum details

Strand: Algebra (Strand 2)
Sub-strand: Patterns and Relationships (2.1)
Content standard: B5.2.1.1 - Determine the pattern rule to make predictions about subsequent elements.
Indicator: B5.2.1.1.6 - Determine and explain why a given number is or is not the next element in a pattern
Suggested placement: Term 2, Week 9 (Week 21 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. 88
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

E.g. 1 Ask students to respond to the following prompt: Shika filled bags with marbles. She placed two marbles in the first bag, four marbles in the second bag, six marbles in the third bag, eight marbles in the fourth bag and twelve in the fifth bag. Her friend Ayerko noticed an error in the pattern. Can you identify and describe the error? Bags 1 2 3 4 5 6 7 Marbles 2 4