Subscribe | UPI Odd Newsletter Subscribe ORINDA, Calif., May 7 (UPI) -- A California boy asked his dad to build him a roller coaster – and he actually did it. It took Orinda dad Will Pemble about six weeks to build the single-rider roller coaster in his backyard and cost him about $3,500. Advertisement He felt like building the amusement park ride was a cool way to help teach his 10-year-old son Lyle about math and science. “The mathematics, the physics, the science, the really hard thinking -- there needs to be something on the other side of that math that’s worth slogging through the math,” Pemble told CBS San Francisco. “So if there’s a coaster at the other side of how many feet of track do we need … then suddenly the word problem gets done really fast.” Lyle got the idea for backyard ride after going on a roller coaster in New Jersey. “I decided to ride it because I thought it would be fun, and then I thought there are more and better roller coasters out there, so I started doing research on them,” Lyle said. The youngster now has dreams of being a roller coaster designer when he grows up. Advertisement “All of the neighbors have said ‘what the hell are you doing back there?’ None of them have complained,” Pemble said. Read More Maryland LNG terminal draws fire Clay Aiken's congressional primary race is too close to call South Carolina couple get life for killing registered sex offender and wife First time ever? Denver police searching for suspects who stole $12,000 worth of marijuana Jimmy Kimmel gets 2-year contract extension from ABC