"I can tell you that the students looked much more excited when they were using the QAMA and their natural interest in, and curiosity about, mathematics, seemed to really be piqued when they used it. It really seemed to provoke an intellectual curiosity that I don't see with the unthinking passivity brought on by the use of ordinary calculators."
- Avi Lidgi (Twainstein Founder) www.twainstein.com
"I finally feel like I have a brain that works."
- Preuss School Student said to his teacher Dr. Dave Weber
"This is brilliant. He should charge $50 - not because he wants to maximize profits, but because we as a society owe it to such a person to make him fabulously rich."
"A wonderfully appealing all-purpose calculator that encourages thought before it supplies an answer. Part Socrates, part sphinx, it forces students to really consider what they're doing before it responds. It's fun, addictive even. Try it."
- John Allen Paulos (Author, Innumeracy: Mathematical Illiteracy and its Consequences)
"The QAMA Calculator - The One Calculator You Should Not Burn! P.S. I paid full price for it - it's not expensive and it's a crazy brilliant idea, so I went for it."
- Bon Crowder (Blogger, Math Is Not A Four Letter Word - Mathfour.com)