Jim Hakala is hitting the road Friday with bins of captivating remnants of the ancient past. Among other things, he’s got fossilized fern, leaves, shark teeth, dinosaur bone, fish, petrified wood and a trilobite. This time, he’s targeting fourth grade classrooms in mostly northeastern Colorado with 12 of his “fossil kits,” courtesy of the Ƶ Museum of Natural History, along with a standards-based curriculum for use by teachers.