Stack and snack on learning opposites with this yummy looking set of flash cards. Stacker Crackers Opposites Learning Game by Learning Resources is a compact game that helps preschool kids to develop vocabulary and language arts skills. The opposites flash cards game features 90 picture cards with real life photo on one side and a word, and a cheese or cracker design on the other. Players pick a card, read a word, and come up with the opposite. Get it right and stack the cracker cards, but watch out: if you grab a Stack Attack card, you will loose your stack. The higher opposites snack stacker will win the game. Easy and fun to play, fast and visual to learn, the Stacker Crackers Opposites Learning Game is a great travel game, too. This kids opposites teaching game from Educational Toys Planet comes with 90 picture cards, 10 Stack Attack cards, and instructions printed on the compact storage box with lid.