This card game is a favorite in my fourth grade math class! This download includes two games - improper fraction to mixed number ZAP and mixed number to improper fraction ZAP. To win, students collect the most cards by correctly changing improper fractions to mixed numbers and visa versa. But if they draw a ZAP card, they must return all of their cards to the discard pile. The excitement and anticipation of this simple card game makes students forget that they are actually practicing fractions!