Number Operations · B4 Mathematics

Lesson notes

Learning Objectives

Indicator: B4.1.2.6.1 - Solve multi-step word problems involving the four basic operations

By the end of the lesson, learners can:

Identify the operations needed to solve a multi-step word problem and state them in the correct order.
Model a mathematical statement (number sentence) from a given word problem involving addition and multiplication, and solve it.
Model a mathematical statement from a given word problem involving subtraction and division, and solve it.
Model a mathematical statement from a given word problem involving multiplication and division, and solve it.
Solve multi-step word problems using the four basic operations and check whether their answers are reasonable using estimation or inverse operations.

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Curriculum details

Strand: Number (Strand 1)
Sub-strand: Number Operations (1.2)
Content standard: B4.1.2.6 - Translate and solve word problems involving the four basic operations on whole numbers
Indicator: B4.1.2.6.1 - Solve multi-step word problems involving the four basic operations
Suggested placement: Term 1, Week 12 (Week 12 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. 18
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

E.g. 1. Learners model mathematical statements from a given word problem involving addition and multiplication and solve using the strategies learnt
E.g. 2. Learners model mathematical statements from a given word problem involving division and subtraction and solve using the strategies learnt
E.g. 3. Learners role play a given word problem involving addition and multiplication and solve
E.g. 4. Learners role play a given word problem involving subtraction and division and solve
E.g. 5. Learners model mathematical statements from a given word problem involving division and multiplication and solve using the strategies learnt The relationship between operations and the use of calculator and spreadsheet to assess the reasonableness of answers should be stressed