Play a paleontologist game in which children identify dinosaur footprints. On clay or Play-Doh, use some plastic dinosaurs to make tracks and have the children guess which footprints belong to which dinosaur. Let children work in partners to play this guessing game with dinosaur footprints they make themselves. You can also use plaster of Paris for this activity and make "fossils" from the resulting tracks.
One activity that will engage students is to stage a fossil dig. Make some plaster of Paris "fossils" by pressing leaves and twigs covered in petroleum jelly into the plaster. You can have the children create the fossils or you can do it yourself. Bury the fossils in a large tub of soil or several large tubs, depending on the number of kindergartners. Give students paintbrushes and explain how to search carefully for the fossils. This activity can also be done in individual cups of soil so that each child has his or her own fossil.
Children will enjoy hearing stories about dinosaurs to help reinforce the concepts you are teaching. Some books, such as "Harry and the Bucketful of Dinosaurs," by Ian Whybrow and Adrian Reynolds, are fun stories that give dinosaurs personalities and relationships with humans. Balance these types of stories with books such as "Bones, Bones, Dinosaur Bones" by Byron Barton and "Dinosaur ABC: For kids who Really Love Dinosaurs!" by Simon Mugford, which are factual books that present factual information directed at young readers.
Dinosaur eggs are exciting to children because of the mystery of what's inside. Conduct a craft in your classroom in which students create their own dinosaur eggs out of paper mache. First, blow up balloons to the desired size. Mix the paper mache yourself and give each child enough to completely cover his or her balloon. When the paper mache dries, allow children to color or paint their dinosaur eggs. For an extra treat, put small plastic dinosaurs in the balloons before you blow them up, then "crack" the decorated eggs with scissors to make them hatch.