He said to do things in I believe 50 minute spurts then take a break, and do it again. It sounds normal. The difference is that it is timed with an egg timer and you only focus on that one task. You don't read email, answer phones, listen to the news, etc. The timer serves as a visual and auditory reminder of the time that is passing and you try to beat the clock and get your task done. If the task requires more sessions you just break it up and use as many as you need.
After today where I'm all over the place, surfing the WF, looking at my email, visiting CNN, etc. I realize that I need to start doing that technique.