Add some fun to your math lesson plans! A perfect addition to educational games, this triangle-shaped board game builds math fluency by helping students easily grasp the concepts of addition and subtraction. Dish out the numbered playing cards, then use the familiar triangle board as a visual clue to fill in the missing spots in the fact families. If you’re the first person to play all your cards, call out “tri-FACTa” and you’ve won! Game includes triangle game board, 100 cards and 4 trays. Plastic. Board, 10".