This engaging math sorting activity helps students build conceptual understanding of multiplication by using scaling to determine whether a product is greater than, less than, or equal to one of the factors. Instead of memorizing rules, students analyze how multiplying by numbers greater than 1, equal to 1, or between 0 and 1 affects the size of a quantity. Students sort equation cards into categories based on whether the product increases, decreases, or stays the same, encouraging deep reasonin