It's just high marks in school now, but a couple local students are looking to make an even bigger mark to change the world.

The Richmond Hill Exchange Club recognized Richmond Hill High School students Ireri Medrano and Braden Chapman as their Students of the Month at the club’s semimonthly meeting Wednesday at the City Center.

“These two are probably some of the most humble students you will ever meet, and they probably don't realize how excellent they are,” RHHS Principal Debi McNeal said. “They're going to be extremely successful. We've already seen that in high school.”

Medrano is set to graduate in May after only three years in high school. The young scholar completed 11 Advanced Placement, or AP, courses that count toward college credit.

Chapman is this year's Student-Teacher Achievement Recognition (STAR) student, having scored the highest on the SAT college entrance exam. He also completed 16 of the 18 AP courses offered at the school.

Both students shared with the club their hopes of making a difference on a global level.

An early graduate, Medrano acknowledged she is getting out in the world early, but said she is excited.

“I feel like getting a head start is just more time spent doing what you want to do, helping the world any way that you can,” Medrano said.

Chapman is on his way to the Georgia Institute of Technology in the fall to study engineering. He said he is considering international work.

“I'm not sure what sort of engineering just yet, but once I get there, I'll figure out what I want to do. And then from there, go into engineering and hopefully help the world. That sounds very general, but I really hope to address a direct problem, just put my mind to it.”