LONGMONT, Colo. — In one back room at Skyline High School, you can learn all you need to know about St. Vrain Valley School District. It’s there that bins of materials sit next to past projects, exposing the district’s DNA. Boxes holding glue, Popsicle sticks, tape, pipe cleaners, compasses, zip ties and rulers lie nestled inside a 6-foot-high, student-constructed rack.