Mathematics

Intermediate

50 mins

Teacher/Student led

Learning Goals

Learning Outcomes

Lesson Files

+90 XP

Teacher-led from the board. Pupils do not need a device, but can follow on one.

What you need:
IWB/Projector/Large Screen

Multiplying a Multi-digit Number by a Single Digit

Learn to multiply multi-digit numbers by a single digit using the area model to find partial products, then link those boxes to the column method.

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1 Getting Started
2 Watch and Notice
3 Try It Together
4 Sketch the Boxes in Your Copy
5 The Four-digit Column Case
6 Class Challenge
7 What Did We Notice?
8 What's Next
Pupil practice

Your turn

Your teacher is running this lesson on the board. Here is the part you can try yourself.

Your written work is on page 24

Area model

1 - Getting Started ~4 mins

Illustration for Getting Started Here is a rectangle that is 23 squares long and 4 squares tall. Hands up: roughly how many little squares do you think fill it? Have a guess before we work it out. If we split the long side into 20 and 3, does that give us a friendlier way to count than one square at a time?

👇 Mark your steps as done as you complete them.

+5 XP

2 - Watch and Notice ~10 mins

The interactive splits each rectangle into boxes and shows the column method beside it. Watch where the number breaks apart, and see if the boxes and the column land on the same answer.

👇 Mark your steps as done as you complete them.

+10 XP

3 - Try It Together ~7 mins

Worked example

Today we work through two products together on the board. First 138 × 6: we split 138 into 100, 30 and 8, so we get three boxes. Find each box: 100 × 6, then 30 × 6, then 8 × 6. Add the three partial products to reach the whole answer. Then we do a second one, 216 × 4, the same way. Call out each box answer before we drop it in.

138 × 6 together

+15 XP

4 - Sketch the Boxes in Your Copy ~3 mins

COPYBOOK MOMENT

In your maths copy, sketch the area-model rectangle for each example. Write the partial products inside each box, then total them at the bottom. Check your total against the column shorthand.

+10 XP

Pupil practice

Module 2 · Operations and Computational Fluency Number

Lesson 25 · Multiplying a Multi-digit Number by a Single Digit

Download Activity Book page (PDF)

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