Flash Cards: To print out as a set of flash cards, select to print 2-sided/double-sided, selecting to flip sheets on the long edge. It is very important to flip on the long edge, otherwise the flash cards will not line up with their correct backside. Then, cut out individual cards. This method works best printed on cardstock.Matching Cards: To print out for a matching game, simply print one sided. Then, cut out individual cards, shuffle, match, & repeat.