Looking for a way to help students practice counting?Subitizingis an important mathematical concept that can greatly benefit student achievement in counting on, composing and decomposing numbers, place value and arithmetic. Subitizingis the ability to quickly identify the number of objects in a set without counting. Help your students master subitizingwith this fun set of 20 interactive BOOM Cards.Common Core Standards CCSS.MATH.CONTENT.1.OA.C.5Relate counting to addition and subtractionCCSS.MA