MATH Area math game: Roll the dice and draw the area array on your own grid - first to fill it wins. Or 2 players choose a different colored pen each, use one grid and the player who cannot complete the last array is the loser.
This is part of the free editing set from First Grade Wow. They keep it in their writing folders. It helps differentiate learning and gives each student focus. There are many other useful pages in the packet, too.
All about me bag - Each child fills the bag with 4 things about them and brings it into school. They can decorate the bag too. I did this with my own items as a first day of school ice breaker. Maybe get large paper sacks from the grocery