I would print the cards representing units in a particular period the same color. More Place Value Ideas - FREE printable - Example on extending learning beyond an ipad game with the use of FREE printable resource
Punch Cards for Positive Behavior - Each student gets a punch card, and when the teacher sees students with exemplerary behavior, they get a punch. When the punchcard is full, the student gets a reward.
Travel Tip: "Roll" dice without losing them by placing them inside a mini Tupperware container. Perfect for kids to play games in the car. This is just a good idea for playing games with dice with kids anywhere!