"You know, it's been proven that 35 to 40 hours a year with one-on-one attention, a student can get one grade level higher"

In this quote, author Dave Eggers is highlighting the significance of personalized attention in education. He mentions that research study has revealed that just 35 to 40 hours of one-on-one attention can lead to a student improving by one grade level. This suggests that customized instruction and assistance can have a considerable effect on a trainee's academic performance. It also emphasizes the idea that quality, focused time invested with a trainee can be more reliable than a larger amount of time spent in a group setting. In general, Eggers is stressing the value of personalized attention and its prospective to positively impact a trainee's learning and development.