Slide 1
Flip It! Addition Works Both Ways
WALT: Model and apply the commutative property of addition Year 1 Mathematics 30 minutes
Slide 2
What Does 'Commutative' Mean?
It means we can swap or flip numbers around The answer stays exactly the same Like magic - but it's mathematics!
Slide 3
Let's Try It Together!
Look at this: 3 + 2 = 5 Now let's flip it: 2 + 3 = ? Count and see what happens! Success Criteria: Write, swap, represent, check
Slide 4
Soccer Team Example
{"left":"10 players on the team\n4 players are away\n6 players are left","right":"We can write this as 6 + 4 = 10\nOr flip it: 4 + 6 = 10\nBoth ways work!"}
Slide 5
Your Turn to Flip!
If 5 + 3 = 8 What does 3 + 5 equal? Use your fingers or blocks to check!
Slide 6
Remember This!
"When we add numbers, we can flip them around and the answer stays the same!" This makes math easier and faster!