Our large foam dominoes give students a fun way to practice and reinforce key math concepts. Each game includes two sets of 24 color-coded dominoes (48 total pieces); each set is ideal for up to four players. Instructions included. Oversized dominoes are made of durable foam (4" x 2" ). In one set players use formulas to match the written notation of volume to diagrams labeled with dimensions. In the second set players use spatial reasoning to match diagrams of centimeter cubes to the written notation of volume. Grades 4-6.