The Addition Snake Game (C 361) is a classic Lower Elementary arithmetic material in which children build a "snake" of colored bead bars and exchange them for golden ten-bars, reinforcing the concept of addition through a concrete, hands-on process. It bridges the gap between the sensorial bead work children know from Primary and the abstraction of arithmetic facts. Keep this material accessible for children in the 6–9 plane who are ready to move from manipulating quantities to internalizing addends and sums.