Learning from Robots

Robots have taken over the Muldown school library — but no need to worry, the students are in total control of the situation.

About 20 students from third- to eighth-grade have built robots from Legos and are using computer-programming skills to control their movements as a part of the Lego Robotics after-school club.

Kellie Harnar, the program's director, says the club is teaching the students math and science — and they don't even realize it.

"It helps them grasp science, engineering, team work and technical computer skills," Harnar said. "The kids love building the robots at first and then they get into the programming part, too. They use a lot of algebra and geometry."

The club utilizes Lego's Mindstorms NXT technology, which acts as the brain for the student's Lego creations. The NXT has motor ports for movement, sensor ports for direction and even a loudspeaker so the robot can talk.

On the most basic level, students can program the robot to make a series of left and right turns.

Advanced students can program their creations to speak, pick up objects and perform complex tasks, such as sorting colors using NXT sensors.

Casey Valez says he really likes being in the club because he gets to be around fun people and he learns about electronics.

He also says Lego robots make great pets for people who might be allergic to dogs and cats.

Valez's teammate Hutton Smith says building the robot has been his favorite part about being in the club, but programming the robot can be difficult.

"You just have to keep trying different things until you get it right," Smith said.

The 10-week after-school program costs $70 per semester to cover the costs of renting the Lego kits from Texas Tech University.

Harnar says she is working toward creating a local Lego league that will compete against other Lego teams from across the region.

For more information about the program, contact Harnar at 863-9188 or go online to the Lego robotics Web site at www.mindstorms.lego.com.