Saturday, October 15, 2011

Addition

This is the very beginning of understanding how addition works.
Let's look at two sets:
Set ASet B
Set A: 2 trianglesSet B: 3 triangles
Count how many
triangles are in Set A... There are 2!
Count how many
triangles are in Set B...
There are 3!
Now, put the sets together into one big set:
Set A and Set B get put together to make 5 triangles
Count how many triangles are in this set...There are 5!
So, 2+3=5