Fencing Blues (grade 56 students)
18 metres of fencing
How big can the area be?
The perimeter is always 18
But the area keeps changing
The dimensions might be 1 by 8 or 2 by 7 (Pause)
3 by 6 or 4 by 5
Is that all there is? (Pause)
18 metres of fencing
How big can the area be?
The perimeter is always 18
But the area keeps changing
4 by 5 has an area of 20 But there’s more (Pause)
A square with side 4.5
Has an area of 20.25 (Pause)
18 metres of fencing
How big can the area be?
The perimeter is always 18
And the squaaaaaaaaaaaaaaare has the biggest area
