Patterns and Relationships · B5 Mathematics

Lesson notes

Learning Objectives

Indicator: B5.2.1.1.8 - Describe the relationship in a given table or chart, using a mathematical expression

By the end of the lesson, learners can:

Read a two-column table and identify how the values in the second column change as the values in the first column change.
Describe the relationship between the two columns in words, such as “the cost is three times the number of students.”
Write a mathematical expression, such as y = 3x or cost = 3 × number of students, to represent the relationship shown in the table.
Use the expression to find a missing value in the table when one value is given.
Create their own word problem and table for a pattern, then write the expression that describes it.

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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: B5.2.1.1.8 - Describe the relationship in a given table or chart, using a mathematical expression
Suggested placement: Term 2, Week 11 (Week 23 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. 89
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

E.g.1 This table shows the pattern of cost of boxed lunches for students on a field trip. Ask learners to: (i) explain the pattern of how the cost of lunches changes as more students go on the trip; (ii) use the pattern to determine how many students went on the trip if the cost of lunches is GHC90. Number of students 1 2 3 4 5 ? Cost of lunch in cedis 3 6 9 12 15 90
E.g. Ask learners to write questions based on the pattern for their friends to find answers.