Children play in groups of three, with each child alternating between three roles: Adder, Timer, Teacher. Game boards are lined up on the table in counting order. Timer starts the stopwatch and tells the Adder "Go!" Adder does the math problems mentally (or using fingers if necessary) and places the addition card onto the game board with the correct answer. When all addition cards have been placed on the game boards, Timer stops the watch. Teacher checks all cards to make certain they are placed correctly. Roles switch and play continues, with each player trying to beat his own time when he is the Adder.
Supports Kindergarten Mathematics Common Core Standards:
•Represent addition and subtraction with objects, fingers, mental images, drawings1, sounds (e.g., claps), acting out situations, verbal explanations, expressions, or equations.
•Fluently add and subtract within 5.