Your littles will love this fun, interactive way to practice counting quantities! Each Boom CardTM has a quantity of fireflies for the student to count. Then, he/she chooses the correct answer at the bottom in order to advance to the next card. This deck has 15 cards presented in random order. *****READ MORE ABOUT BOOM CARDS: Boom Cards are self-grading, DIGITAL resources. They live in the cloud. They can't be printed. They play on most modern browsers, Android, iPads, iPhones, and Kindle Fires.