3D-printed dental prosthetics, delectable brownies and a pet adoption app that works like Tinder. These were three examples of the handiwork of career and technical education high school students on display at the Spring Education Conference’s bustling exhibit hall.

“The diversity of projects shows how wide a variety of career paths our CTE members open up to students,” said Vice President for Career and Technical Education Leo Gordon.

Scott Fowler, a graphics teacher at Chelsea Career and Technical HS in Manhattan, spoke about “leveling the playing field” for students. “I put a camera in a kid’s hand, and it opens up a new world,” he said.

Andrea Lingstuyl, a teacher at Queens Technical HS in Long Island City, brought a group of students to cut hair, give massages and do manicures for conference-goers for free.

“This is a real-world application of their skills, and there is nothing like working on a real person,” she said. “It gives them a level of satisfaction and a training experience that mimics what they will do when they get their licenses.”

Members like Rachael Monaco, the virtual enterprises coordinator at Susan E. Wagner HS on Staten Island, kept the spotlight on her students, who led demonstrations and answered questions about their recycled-clothing business at their school’s booth.

“They have ownership,” Monaco said. “I’m the facilitator — it’s the best job in the world.”