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Maths

Multiplication Word Problems: Choosing the Right Strategy

Overview

Students encounter multiplication in real-world contexts, learning to translate words into calculations and justify their method.

Learning Objective
Students read multiplication word problems, identify the key information, select an appropriate strategy (arrays, repeated addition, or known facts), and show their working.

Resources needed

  • Word problem cards or board
  • Squared paper for drawing arrays
  • Counters

Lesson stages

0 / 7 done
  1. 1 Quick tables practice: teacher calls a multiplication fact, students answer on mini whiteboards. Focus on the 2, 5, and 10 times tables.
  2. 2 Display: 'There are 4 bags. Each bag has 6 apples. How many apples are there altogether?' Read aloud. 'What do we know? What do we need to find out?' Underline key numbers.
  3. 3 Show three approaches: (1) Draw an array — 4 rows of 6 dots. (2) Repeated addition — 6+6+6+6. (3) Known fact — 4 × 6 = 24. 'All three give the same answer. Which is fastest for you?'
  4. 4 Work through two more problems together, asking students which strategy they prefer and why. Emphasise reading carefully — 'how many altogether' signals multiplication.
  5. 5 Students solve 4 word problems independently, showing their chosen strategy for each. Problems should involve the 2, 3, 4, 5, and 10 times tables.
  6. 6 Show two worked examples — one correct, one where the student added instead of multiplied. Ask students to find and explain the error.
  7. 7 Which strategy did you use most? When would you choose an array? When would you use a known fact?

Tap a step to mark it as done.

Variations

  • Include problems that require choosing between multiplication and addition (not all are multiplication)
  • Write your own word problem for a partner to solve
  • Include two-step problems for extension
More information

Highlight and define: 'each', 'altogether', 'groups of'. Demonstrate underlining strategy for key information. Allow verbal explanation before written response.

Provide a word bank (altogether, each, groups of, rows of) so students can identify multiplication language. Allow use of multiplication grids.

Do students correctly identify when a problem requires multiplication? Can they use more than one strategy? Do they include units in their answers?

Write problems on the board rather than cards. Students use fingers or tally marks as counters.

Students may add when they should multiply (seeing 4 and 6 and writing 4+6). Reinforce the meaning of 'equal groups' and 'how many altogether'.