Pyramid Math[br]Move the sliders to change the numbers.[br]Two adjacent numbers add to the number above.[br]Can you predict the top number?[br]This creative practice activity facilitates discovery[br]of number patterns and develops number sense.[br]- from [i]Simply Great Math Activities: Number Sense[/i][br]by Brad Fulton; [url]http://www.tttpress.com/products.html[/url]

Switch the order of the numbers; does this change the top number?[br]Add 1 to A; how does this change the top number?[br]Add 1 to B; how does this change the top number?[br]What if all four cells in the bottom row are even? odd? contain the same number?[br]What can you predict for a pyramid with five rows?