Kellie, a seventh-grader, then moved the bucket of dirt a few feet to an archaeology tool called a screen, which others were holding. "Screen!" — the students yelled who were shaking the tool that caught the dumped dirt as a cloud of dust formed. The screen is just that — a wooden rectangle with screening in the center that allows archaeologists to find artifacts after most of the dirt passes through. Tuesday was Archaeology Day at the charter school east of Visalia. Steven Ptomey, a park interpreter at Colonel Allensworth State Historic Park was the main speaker. He has a background of 20 years in archaeology. Ptomey gave students information about the archeological tools they would be using and information about the different jobs at an archaeological site. Under Ptomey's guidance, students had a chance to try their skills in an area designated for the dig by the school. Each student played a different role. An area in front of the school was preset into squares which students had a corresponding map for. "You're going to want to dig in 10 centimeter levels in most cases," Ptomey said. "Let's say I find a golden monkey, I am going to have to map that before I touch it." [...]