Students assemble snowmen using ball of different values- the top balls must total up to the bottom ball.
Mathtivity 2: Students determine the value of the missing ball so that the addends and their sum result in a complete math sentence.
Mathtivity 3: Students have to "balance the balls". They place the snowballs in the trees to that there are equivalent expressions across from each other. The cut out and place the balls in the designated spots.