Push any desk toward the perimeter of the room so that there is plenty of space in the middle. Tell the class the everyone must decide whether they want to be a cow or a duck, but keep it to themselves. When you say go, the students must close their eyes and use the sounds a cow and duck would make to find other people that are also ducks or also cows. You may repeat this game several times with different animals.
Have the children sit in a circle. Choose one child to make a funny face. The person next to her must try to copy that face, then the next child to copy the next child and so on. Each child will make a face slightly different so the funny face may be completely different by time the circle is complete. This game is sure to elicit plenty of giggles from first-graders.
Make plenty of room for this activity. One student starts off as the blob. The other students have to run around in a designated area and avoid the blob. When the blog tags someone, that person holds hands with the blob and helps to try to catch more kids. Each time a child is tagged the blob gets bigger until all the kids have been caught.
Give each child an index card with something written on it they are thinking about. The students must walk around holding up their index cards to find someone who has an index card that relates to their card. For instance, one child might have a picture of ice cream and another child will have a picture of an ice cream cone. Other pairs you could have are shoes and socks, dog and dog collar and a hot dog and ketchup. When the children find each other, they must exchange information about each other. Each group then stands in front of the class and introduces their partner.