About This

• Powerful visualizations for meaningful, connected learning
• Spaced repetition takes advantage of cutting-edge science of memory
• Extra games and explorations included to deepen learning
• Three decks with three different visualizations of multiplication, for a total of 162 cards.
• Deck 1: Dots in circles. 1 × 1 through 5 × 5 (25 cards total)
• Deck 2: Arrays. 1 × 1 through 10 × 10 (100 cards total)
• Deck 3: Prime factor circles. Products from 4 to 100. (37 cards total)