What exactly is "Enough Instruction"?

I recently received a comment on this blog in an earlier post. I greatly appreciated this comment and it got me thinking about it for days. Here's the first part of the comment:

"Hi Alex, 
I am interested to know how you balance instruction and the flipped classroom format. Do you encounter students who feel that they are not receiving enough instruction? If so, how do you address this?"
Here's how I address this.

Let me illustrate with the stories of two separate students in my math class.

First, let me give a brief synopsis of what a student does in my math class.

They get a document, like this, which lists all the videos and assignments. They begin by watching a video. Then they complete the assignment. Then they check their work with the answer key to see if they go it right. This cycle represents a single lesson. The repeat the cycle for each lesson. Every 1-4 lessons I have them complete what I call an exit slip. It is a quiz that I mark, but does not count on the report card. I also review all their work and check to see that they have been completing things correctly. At any time in this process they can ask for my help and work with me one on one.

Let's call the first student Bill. Bill sits down and gets to work. 2 days later he brings me an exit slip. I check the exit slip. It's perfect. I look through all the work he's done and notes he's taken. They are exactly like I've asked for him to do in the videos. I sign off and he is allowed to move on to the next lesson. 30 second have passed. In 2 days I spend 30 seconds with him one on one. Probably once a week he'll ask a question, or I'll notice a problem with his work. In total during a single week I might spend 5 minutes with him. In and entire week! He easily earns an A+ in math, finishes the entire curriculum 2 months early and starts the next grade's curriculum ahead of time.

Let's call the second student Elliot. Elliot finds math to be a struggle. Actually he finds school to be a struggle. He looses his books and papers regularly, is often in the principal's office, never does homework, you get the picture. He attempts to follow the same process, but he has so many gaps in what he's learned over the years that he needs constant help. Every time I check his work, there's a mistake and something I need to teach him. He often forgets what we did the day before. I spend at least 15 minutes with him every single day, teaching him one on one. Every. Single. Day. All. Year. Long. But at the end of the year he is able to solve an Algebra question.

I would argue that both of those students had "Enough" instruction.

But this requires that we re-think what "Enough" is.