Move the sliders to change the numbers.
Two adjacent numbers add to the number above.
Can you predict the top number?
Switch the order of the numbers; does this change the top number?
Add 1 to A; how does this change the top number?
Add 1 to B; how does this change the top number?
What if all four cells in the bottom row are even? odd? contain the same number?
What can you predict for a pyramid with five rows?
This creative practice activity facilitates discovery
of number patterns and develops number sense.
- from [i]Simply Great Math Activities: Number Sense[/i]
by Brad Fulton; [url]http://www.tttpress.com/products.html[/url]