It's the first-ever Back-to-School edition of "Human Lab!" Two students and one teacher try three products that claim to make their busy school days a whole lot easier. Will they work?

Getting organized

Kailand says he enjoys going to school, but has trouble studying because he can't seem to keep his notes in order. To help him get organized, Kailand tries the Fly Fusion Pentop Computer, which claims to automatically capture and digitize everything you write. After using the pen, you hook it up to your PC and all the notes you took will appear. It doesn't take long before this fifth grader becomes a fan. "There's really nothing I don't like about it," Kailand says. "I love it!"

Reducing stress levels

Juliana, a fifth grade teacher, loves teaching but doesn't know how to deal with some of the stresses that come with the job. She tries the Stress Eraser, which claims to relax your body and mind by changing your breathing techniques. The device monitors your pulse rate during different levels of breathing and trains you to inhale and exhale at an optimum level. At first, Juliana says the device was helpful in helping her control her breathing, but later she was unable to get a pulse on the machine. "So it's not relaxing anymore" she says.

Rachael reads a statement from the makers of the Stress Eraser that might explain why Juliana experienced issues. "Problems are sometimes caused by weak batteries or cold hands," Rachael reads, adding that she has cold hands too. "They suggest replacing the batteries or warming up before taking a reading."

Little girl, big bag

Eleven-year-old Amanda's back pack is stuffed so full of books that it hurts her shoulders, back and legs. "It's just too heavy for me!" she cries. She tries the AirPack Backpack, which claims to reduce stress on your back and make your pack feel 50% lighter. The pack's lumbar cushion can be adjusted for comfort. Amanda is able to fit all of her books and supplies in the bag, but does it feel better? "It's comfortable and light," she says. "It's just the best bookbag ever."

From a medical perspective, Dr. Donnica Moore explains that ergonomically designed packs like the Airpack are important for kids like Amanda who find normal backpacks too stressful for their bodies. "We expect to hear that from middle-aged moms like myself," Dr. Donnica says, "not from middle schoolers, and yet we know that more than half of middle and high school students are complaining about back, shoulder and neck pain as though they are older people." She adds that there is a national standard that kids' backpacks should be no more than 15% of their body weight, so a 100-pound seventh grader should have a backpack that's no more than 15 pounds.

Rachael enlists the help of eBay's gadget gal Cat Schwartz to offer additional tips. She suggests that parents go online, where some of the best reviews come from other parents. "They have no intentions but to help out another mom," she says. "That's why moms are awesome!"