This document is from the IES Las Cumbres school in Grazalema, Spain. It contains a table showing the difference between perfect squares and consecutive integers. Each row shows a perfect square number subtracted from the next integer. This follows the pattern of the differences increasing by 2 each time. For example, 32 - 22 = 5, 42 - 32 = 7, and so on. The table continues this pattern for higher integers.