Multiplication: Grouping Made Easy!

Multiplication: Grouping Made Easy!

Year 3 Mathematics Learning to multiply through grouping and repeated addition

WALT (We Are Learning To)

Understand that multiplication is repeated addition Create equal groups to solve multiplication problems Use the words 'lots of' to describe groups Find totals by counting groups

Hook: The Messy Counter Challenge!

Look at this pile of 12 counters Is there a faster way to count than one by one? Let's find out together!

New Vocabulary

Equal Groups: Groups that have the same number in each Repeated Addition: Adding the same number over and over Lots of: Another way to say groups of the same amount

The Bird Nest Story

I have 3 bird nests Each nest has 5 eggs Are the groups equal? YES! I can write this as: 5 + 5 + 5 = 15 This is 3 lots of 5

Think-Pair-Share Time!

Look at this picture: 4 cars, each with 2 people Whisper to your partner: How many groups are there? How many are in each group? How would we say '_____ lots of _____'?

Counters & Cards Challenge

Work in small groups with counters Pick a Challenge Card (like 'Create 5 groups of 2') Move your counters into equal groups Say out loud: 'I have ___ groups of ___'

Let's Practice Together

Look at the array of dots Count by groups: 2, 4, 6, 8, 10, 12 Write as repeated addition: 2 + 2 + 2 + 2 + 2 + 2 Say it: 6 lots of 2 makes 12

Multiplication in Real Life

Independent Practice Time

Complete your worksheet with three sections: 1. Look at pictures and write repeated addition 2. Draw '3 groups of 4' and find the total 3. Challenge: Try writing with the × symbol

Quick Check Understanding

Give me a thumbs up if: Groups must be the SAME SIZE for multiplication to work Think about it... What happens if groups are different sizes?

What We Learned Today

Multiplication is repeated addition We can make equal groups to multiply We use 'lots of' to describe groups Counting by groups is faster than counting by ones Groups must be the same size