1. a + 2 = 6 What does this represent? 2 a 1 2 3 5 4 6 7 8 9 11 10 12 131 2 3 5 4 6 7 8 9 11 10 12 13 14 15 17 16 18 19 20
a + 2 = 6

2. 3(a + 2) = 18 What does this represent? a 2 a 2 a 2 1 2 3 5 4 6 7 8 91 2 3 5 4 6 7 8 9 11 10 12 13 14 15 17 16 18 19 20
3(a + 2) = 18

3. How does 3(a + 2) change as a increases?1 2 3 5 4 6 7 8 9 11 10 12 13 14 15 17 16 18 19 20

4. What value is a this time?
What does this represent? 2 a 2 a 2 a 1 2 3 5 4 6 7 8 9 11 10 12 13 14 15 17 16 18 19 20 21
3(a + 2) = 21
What value is a this time?

5. How could we find out what a + 2 equals?
What does this represent? 2 a 2 a 2 a
144
3(a + 2) = 144
How could we find out what a + 2 equals?

6. How could we find out what a equals?
What is the equation after dividing both sides by three? 2 a 48
a + 2 = 48
How could we find out what a equals?