Teachers are welcome to make enlarged photocopies of the cards, either for classroom use or for coloring. Some of the activities can be used at a higher or lower level in the other group, however, so at least scan both sections. If your Dino Hunt collection includes a fair number of duplicate cards, a simple recognition activity is to have the younger children match them. Start to lay the cards out in a large rectangle, say six cards wide by as deep as needed. They'll eagerly scan the cards on the table, trying to be the first to spot the duplicate.
Younger children learn a lot by sorting cards by type.
Ask them to sort dinosaurs by those that use all four legs to walk with versus those that go on two legs. Then separate by Carnivores versus Herbivores , explaining those terms. You can sort dinosaurs by main color, or by those that have horns versus those without horns, and so on. This simple activity is for those learning the alphabet. They won't be able to pronounce the dinosaur names, but they'll have a sense of accomplishment if they can simply sort them alphabetically.