THE Journal: Should technology be able to prove its value in education? That's a question Melissa Dodd doesn't see much meaning in. After all, she noted, tech has become the new textbook. "And I don't think we used to ask about the value of a textbook for learning." During her tenure as the Chief Technology Officer at California's San Francisco Unified School District, Dodd has become convinced that tech shows impact daily in meeting the needs of her school system's 57,000 students.