Folding the Integer Infinity Square

	Cut out the large rectangle..
	...then cut apart the four rectangles.
	Turn the four rectangles so that the "glue here" squares are all facing down.
	Then fold the short sides of each rectangle to the middle of the rectangle.
	Unfold all of the folds so that the rectangles once again lie flat.
	Position the rectangles so they form two squares.  One square will show the two panels for subtracting integers; the other will show the word "integer" on the left and "tiplicat" on the right.
	Pick up the two rectangles showing the subtraction panels and place them directly on top of the "integer" and "tiplicat" rectangles.
	Fold back the upper right flap.   Place glue on the two "glue here" squares, then fold the flap back down and press to glue.
	Fold back and glue the second flap...
	... and the third flap...
	... and the last flap.
	This is how the glued project will look.
	To see the multiplication panel, open the center of the project like a book.
	Allow the rectangles to fold backward as you open up the panel.
	Once again open the center of the project like a book to reveal the division rules.
	Open like a book again to reveal addition rules.
	And open like a book again to return to...
	...the subtraction rules.