Rob: Vintage tractors are helping teach a new generation about everything from engineering to agriculture. Our Casey England caught up with a group of tractor enthusiasts at the Murray County tractor show. Casey England: For Rick Pender the Murray County tractor show is not just about tractors, it's about bringing history to life. Rick Pender: We take the kids through, and we allow them a lot of hands-on stuff to see what people used to have to do in the past to provide food for themselves and their animals. Casey: One of the most popular demonstrations with the kids is the corn grinder. After grinding until there's no more kernels left, the kids get to take their cob home as a souvenir. John Paul Goodridge: There's your husk. Casey: John-Paul Goodridge is thankful that his son was able to get out of the classroom and learn Oklahoma history first-hand. Goodridge: He's getting to see a lot of things he's never seen before. We're actually going to come back tomorrow and bring the whole family out. Casey: With 28 exhibits, kids can experience all the old-time farm has to offer. They taste home churned butter, get a feel for making a broom, see what it's like to pump their own water, and even feed mules that were used on the farm. Mac Bohn: The four that are here in the two pens closest to us are believed to be the four largest draft mules in the world. Casey: Mac Bohn is a strong believer in teaching future generations the importance of agriculture. Bohn: We don't want the world growing up thinking that all of their groceries and what they eat, and that, came from the back room at the Wal-Mart Super Center. Casey: Shea Thompson brought her class from Whitebead Elementary School. She says her students are getting a valuable lesson, a lesson they could not learn in the classroom. Shea Thompson: They can see all the progress that we've made and how things used to be and just have an appreciation for the heritage that we have in Oklahoma. Casey: A heritage that is strong in Murray County and is being passed on to future generations. Rob: To learn more about vintage tractors and see how some schools are benefiting from donations, just head to our website at OkHorizon.com and click on value added.