Assign Boom Cardsâ„¢ with Google Classroomâ„¢, SeeSaw, or any site.This deck will help students to practice or review counting to 20. The cards will be shuffled each time a deck is used. Have your students play this deck over and over to gain fluency. Perfect for early finishers, independent practice, assessment, or technology math center when you finally head back to school. â–ºBoom Cards are fun, interactive, self-checking, and paperless (that means NO printing, cutting, or laminating).â–ºYou may hi